David S. Irwin, M.d.,p.a.
Psychiatry | Geriatric Clinic
16220 Frederick Rd, Suite 308, Gaithersburg
Maryland, 20877-4039
301-840-1077 301-948-6199
Maps & DirectionsDavid S. Irwin, M.d.,p.a. is a Psychiatry | Geriatric Clinic in Gaithersburg, Maryland. It is located at 16220 Frederick Rd, Suite 308, Gaithersburg, MD and its contact number is 301-840-1077. The authorized person for David S. Irwin, M.d.,p.a. is Julie Jaster
who is Office Manager of the clinic and his/her contact number is 301-840-1077. Other organizations associated with this clinic are David S. Irwin, M.d.,p.a., Hefuna Mental Health Wellness Llc, The primary license number for David S. Irwin, M.d.,p.a. is D0001714 (Geriatric Psychiatry) in Maryland.
David S. Irwin, M.d.,p.a. Clinic has mental health professionals having psychiatric expertise in prevention, evaluation, diagnosis and treatment of mental and emotional disorders in the elderly, and improvement of psychiatric care for healthy and ill elderly patients.
Complete Clinic Profile:
David S. Irwin, M.d.,p.a. Clinic speciality, address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointments.
| Name: | David S. Irwin, M.d.,p.a. |
| Specialization: | Geriatric |
| Clinic Address: | 16220 Frederick Rd, Suite 308, Gaithersburg,
Maryland, 20877-4039 |
| Phone: | 301-840-1077 |
| Fax: | 301-948-6199 |
Authorized/Official Person Profile:
Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.
| Name: | Julie Jaster |
| Position: | Office Manager |
| Contact Number: | 301-840-1077 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details for David S. Irwin, M.d.,p.a. clinic are as mentioned below.
| NPI Number: | 1366866808 |
| NPI Enumeration Date: | 04 Feb, 2014 |
| NPI Last Update On: | 04 Feb, 2014 |
Other Associated Organizations:
Other organizations which are associated with this clinic are as mentioned below. These organization share the same address but have similar or different specialization.
Speciality of these organizations are also mentioned below.
| Name | Specialization | NPI Number |
| David S. Irwin, M.d.,p.a. | Geriatric | 1366866808 |
| Hefuna Mental Health Wellness Llc | Psychiatry | 1629470547 |
Medical Licenses:
Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for David S. Irwin, M.d.,p.a. are as mentioned below.
| Specialization | License Number | State | Status | |
| Geriatric Psychiatry | D0001714 | Maryland | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | David S. Irwin, M.d.,p.a.
16220 Frederick Rd, Suite 308
Gaithersburg, Maryland |
| Zip: | 20877-4039 |
| Phone Number: | 301-840-1077 |
| Fax Number: | 301-948-6199 |
Patients can reach David S. Irwin, M.d.,p.a. at
16220 Frederick Rd, Suite 308, Gaithersburg, Maryland or can
call to book an appointment on 301-840-1077.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.