Dr. Walter M. Ryan, DO | Nashua, NH | Allergy & Immunology

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Ryan graduated from the Nova Southeastern University North Miami Beach Fl in 1993. He works in Nashua, NH and specializes in Allergist/immunologist. Dr. Ryan is affiliated with West Boca Medical Center.

accepting new patients
3.4

20 Ratings
33 years of experience
18 insurance plans accepted
speaks English
SUNY - The State University of New York at Buffalo Buffalo NY
14 written reviews
2 specialties
14 areas of expertise
2 board certifications
1 hospital affiliation
1 office location
Male

Gave an accurate diagnosis
Spent time with me
Provided follow-up after the visit

Based on patient feedback. Read the reviews

Dr. Ryan's Ratings and Reviews

3.4

20 Ratings with 14 written Reviews

Average Wait Time 11 Minutes

How was your appointment with
Dr. Ryan?

Patients’ Perspective

Gave an accurate diagnosis: (9) Did WellNeeds Improvement (5)
Had a good bedside manner: (8) Did WellNeeds Improvement (6)
Spent time with me: (9) Did WellNeeds Improvement (5)
Provided follow-up after the visit: (9) Did WellNeeds Improvement (5)
Flexible scheduling: (12) Did WellNeeds Improvement (2)
Saw me in a timely manner: (1) Did WellNeeds Improvement (0)
Staff was courteous: (1) Did WellNeeds Improvement (0)

20 ratings & reviews

Sort:

Showing 1 to 10 of 14 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr.Ryan is incredible! He is very thorough and knowledgeable and really know his stuff with Allergy, Asthma & Immunology. Appreciate his care so much!

June 4th, 2026

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I tried to renew a prescription that I had 3 remaining refills for, and they denied me and basically reprimanded me for not being able to attend a follow up appointment. It takes MONTHS to make an appt there. This medication is important as I break out in full body hives around cats/dogs and have one of each. What is the follow up for? Obviously asking for a renewed script. Not to mention the Dr was condescending when I went, and I found barely addressed many of my concerns. They told me to ask my PCP to fill it while I waited, so basically they could refill it if they wanted to, as apparently my PCP can without an appointment? Their attitude and unwillingness to help belongs at the DMV, not in healthcare. There are other allergists in the area. Make this one your last choice

January 19th, 2026

1 person found this helpful

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I had an amazing experience. I higly recommend Dr.Ryan. Very knowledgeable Dr and very caring. His front desk staff as well as the manager were just amazing.

September 25th, 2020

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. Ryan and his staff in the Boca Raton location are amazingly great they are very friendly and professional. Dr. Ryan was able to pin point exactly my issue. I will not go to any other allergist.

September 25th, 2020

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

When I went he was very knowledgeable and friendly. He solved my issue very quickly. Would highly recommend!

March 23rd, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

GREAT DOCTOR- HAVE SEEN MANY IN THE PAST, NONE COMPARE

May 2nd, 2017

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

great visit felt better caring staff

January 13th, 2017

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

He is very rude. Literally yelled at my child. A 14-year-old needs to be encouraged to live life and not be expected to be shroud in a bubble. You can't escape germs - and a child with a compromised immune system should be taught skills on how to minimize risk as opposed to avoiding it!!!

April 28th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

First impression: Terrible. Staff has an attitude-and less than friendly; office is old and worn-the exam room made me feel like I was in a prison-2 hard, wooden chairs, no pictures, but 1 poster. It's awkwardly set up because there's a corner "desk" with a computer on it, and chairs directly next to "desk". Dr. Ryan has no affect whatsoever, but was condescending. He pretty much acted like he didn't are too muchabout me, the mother, AND my 6 year old, who was the patient. WILL NOT be returning

April 8th, 2016

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Zero bedside manner!!!! Terrible experience

August 24th, 2015

Dartmouth Hitchcock Clinics Nashua

2300 Southwood DrNashua, NH 03063

Tel: (603) 577-4435


Dr. Walter M. Ryan, DO	Dr. Boris Balson, MD	Dr. John Nader Kalliel, MD	Dr. Michelle Courtney Maciag, MD
Allergy & Immunology	Allergy & Immunology	Allergy & Immunology	Allergy & Immunology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
3.4 (20 Ratings)	2.8 (17 Ratings)	4 (20 Ratings)	0 (0 Ratings)
33 Years of Experience	47 Years of Experience	44 Years of Experience	13 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English	Speaks Spanish, German	Speaks English	Speaks English, Spanish
Nashua , NH	Brookline , MA	Manchester , NH	Salem , MA
Med School: Nova Southeastern University North Miami Beach FL	Med School: North-Western State Medical University I I Mechnikov	Med School: Tufts University School Of Medicine	Med School: Drexel University College Of Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Accepts Medicaid
Aetna
AmeriHealth
Anthem Blue Cross
Blue Cross Blue Shield
CHAMPVA
Cigna
GEHA
Harvard Pilgrim Health Care
HealthPartners
Medicare
Medicare - Medicaid
Medicare - Medicare
Molina Healthcare - HMO
Oscar Health Insurance
Preferred Care Partners
Prestige Health Choice
Tricare
UnitedHealthcare

Allergies
Allergist/immunologist
Anaphylaxis
Asthma
Desensitization
Food Allergies
Hay Fever
Hay Fever (Seasonal Allergic Rhinitis)
Hives (Urticaria)
Itching
Nasal Allergy (Rhinitis)
Rash
Sinusitis
Watery Eyes

MEDICAL LICENSE

Doctor Of Osteopathy, New Hampshire, 2027, Active

EDUCATION & TRAINING

Fellowship

SUNY - The State University of New York at Buffalo Buffalo NY1998

Residency

University of Massachusetts Medical Center Worcester MA1996

Internship

Tulane University Medical Center New Orleans LA1994

Medical School

Nova Southeastern University North Miami Beach FLGraduated in 1993

Dr. Cali Marlana Reynolds, MD
Allergy & Immunology
12 Years Exp | Westford, MA
(0)
Dr. Li Liang, MD
Allergy & Immunology
44 Years Exp | Chelmsford, MA
(7)
Dr. Sara Elizabeth Narayan, MD
Allergy & Immunology
22 Years Exp | WESTFORD, MA
(1)
Dr. Diana Loree Saryan Balekian, MD
Allergy & Immunology
17 Years Exp | Salem, MA
(0)
Dr. William Joseph Monafo, MD
Allergy & Immunology
39 Years Exp | Townsend, MA
(0)
Dr. Wilfred Normand Beaucher
Allergy & Immunology
54 Years Exp | North Andover, MA
(2)
Dr. Steven Roy Grandgeorge, MD
Allergy & Immunology
| Bedford, NH
(1)
Dr. Thomas Francis Johnson, MD
Allergy & Immunology
60 Years Exp | Methuen, MA
(71)
Dr. Edwin Brooke Knights, MD
Internal Medicine
50 Years Exp | Acton, MA
(9)
Dr. Risa Jan Korn, MD
Internal Medicine
46 Years Exp | LEXINGTON, MA
(13)

Does Dr. Walter Ryan accept my insurance?: You can see the insurance plans that Dr. Walter Ryan accepts on their Vitals profile.
What languages does Dr. Walter Ryan speak?: Dr. Walter Ryan speaks English.
Is Dr. Walter Ryan accepting new patients?: Dr. Walter Ryan is accepting new patients on Vitals. View Dr. Walter Ryan's profile on Vitals to make an appointment.
Which hospitals is Dr. Walter Ryan affiliated with?: Dr. Walter Ryan is affiliated with West Boca Medical Center.
Does Dr. Walter Ryan accept virtual/telehealth appointments?: Dr. Walter Ryan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.