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Dr. Posthumus graduated from the Rutgers Robert Wood Johnson Medical School in 2007. Dr. Posthumus works in Stafford, VA and specializes in Allergist/immunologist and Otolaryngology-Head And Neck Surgery. Dr. Posthumus is affiliated with Mary Washington Hospital.

accepting new patients
4

4 Ratings
19 years of experience
1 insurance plan accepted
speaks English
University Of Virginia
2 written reviews
3 specialties
12 areas of expertise
1 board certification
1 hospital affiliation
1 office location

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Dr. Posthumus' Ratings and Reviews

4

4 Ratings with 2 written Reviews

Average Wait Time 33 Minutes

How was your appointment with
Dr. Posthumus?

Patients’ Perspective

Gave an accurate diagnosis: (2) Did WellNeeds Improvement (1)
Had a good bedside manner: (2) Did WellNeeds Improvement (1)
Spent time with me: (2) Did WellNeeds Improvement (1)
Provided follow-up after the visit: (2) Did WellNeeds Improvement (1)
Flexible scheduling: (2) Did WellNeeds Improvement (1)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

4 ratings & reviews

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I was a patient of Dr. Posthumus for years in Stafford. He was completely professional, attentive to what I was saying, and very responsive to my particular allergy/sinus troubles. Moreover, Dr. Posthumus went above and beyond in helping me figure out an unrelated health problem one summer that wound up needing immediate addressing when no other doctor (including my primary care) would listen or take action. He was tenacious in calling specialists all over the state as he researched my unusual symptoms. After being admitted the hospital on a critical cardiac care floor, Dr. P actually called to check in on me. This was my ALLERGIST! Wonderful thorough doctor he is. I have since moved out of the area, but I still recommend him to friends in Stafford/Fredericksburg should they need allergy help.

March 23rd, 2026

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Dr. Posthumus took the time to listen and review my current situation after my not seeing him for 4 years. He reviewed my file prior to my appointment and was up-to-date with his questions and proposals for my medial issue. I trust Dr. Posthumus, knowing he will do everything possible for all his patients to receive the best medical care.

January 23rd, 2019

Allergy Partners of Fredericksburg

12 PGA Drive Ste 101Stafford, VA 22554

Get Directions

Tel: (540) 288-0942

Mon9:00 am - 5:00 pm

Tue9:00 am - 5:00 pm

WedClosed

Thu9:00 am - 5:00 pm

FriClosed

SatClosed

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Dr. Jonathon Posthumus	Dr. Andrew S. Kim, MD	Dr. Feung Le, MD	Kimberly J Cofsky
Allergy & Immunology	Allergy & Immunology	Allergy & Immunology	Allergy & Immunology
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4 (4 Ratings)	4.4 (8 Ratings)	0 (0 Ratings)	0 (0 Ratings)
19 Years of Experience	26 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English	Speaks English, Korean	Speaks English	Speaks French, Spanish, Arabic, Italian, English
Stafford , VA	Fredericksburg , VA	Manassas , VA	Washington , DC
Med School: Rutgers Robert Wood Johnson Medical School	Med School: Virginia Commonwealth University School Of Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Most Insurances Accepted

Allergies
Allergist/immunologist
Asthma
Desensitization
Hay Fever
Itching
Nasal Allergies
Nasal Allergy (Rhinitis)
Otolaryngology-Head And Neck Surgery
Rash
Sinusitis
Watery Eyes

Mary Washington Hospital

MEDICAL LICENSE

Medical Doctor, Virginia, 2026, Expired

EDUCATION & TRAINING

Residency

University Of Virginia

Medical School

Rutgers Robert Wood Johnson Medical SchoolGraduated in 2007

Dr. Ronald Dijamco Deguzman
Allergy & Immunology
35 Years Exp | Fort Belvoir, VA
(0)
Dr. Darya Alexeevna Koenig
Allergy & Immunology
9 Years Exp | WOODBRIDGE, VA
(0)
Dr. Cheryl L. Barron, Au. D.
Audiology
13 Years Exp | Manassas, VA
(0)
Dr. Naomi Will, DO
Otolaryngology-Head & Neck Surgery
12 Years Exp | Fort Belvoir, VA
(0)
Dr. Charles Alexander Riley, MD
Otolaryngology-Head & Neck Surgery
14 Years Exp | Fort Belvoir, VA
(0)
Dr. Priya V Dukes, MD
Otolaryngology-Head & Neck Surgery
8 Years Exp | WOODBRIDGE, VA
(0)
Dr. Jeffrey Martin Schafer, MD
Otolaryngology-Head & Neck Surgery
12 Years Exp | Lafayette, IN
(2)
Dr. Bonita Wesley Wilson, MD
Allergy & Immunology
50 Years Exp | Fredericksburg, VA
(3)
Dr. Appaji Gondi, MD
Allergy & Immunology
45 Years Exp | Washington, DC
(15)
Dr. Julie Therese Cooper, MD
Allergy & Immunology
15 Years Exp | Fredericksburg, VA
(2)

What languages does Dr. Jonathon Posthumus speak?: Dr. Jonathon Posthumus speaks English.
How can I make an appointment with Dr. Jonathon Posthumus?: You can find contact information for Dr. Jonathon Posthumus here on Vitals.
Does Dr. Jonathon Posthumus accept virtual/telehealth appointments?: Dr. Jonathon Posthumus has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Jonathon Posthumus's office located?: Dr. Jonathon Posthumus's office is located at 12 PGA Drive Ste 101, Stafford, VA, 22554.
Which hospitals is Dr. Jonathon Posthumus affiliated with?: Dr. Jonathon Posthumus is affiliated with Mary Washington Hospital.

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Dr. Jonathon Posthumus

Summary

Quick Facts

Patients’ Perspective

Dr. Posthumus' Ratings and Reviews

Patients’ Perspective

4 ratings & reviews

Office Location

Allergy Partners of Fredericksburg

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Insurance Plans Accepted by Dr. Jonathon Posthumus

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