Physician Profile
Unclaimed ProfileAbout ZWERDLING
David M. Zwerdling, M.D. is a healthcare provider in Kensington, MD specialising in psychiatry. David trained at Yale University School of Medicine, graduating in 1975.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Zwerdling's specialty?
Dr. Zwerdling is a psychiatry in Kensington, MD. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PSYCHIATRY”.
NPI registry
Where can I find Dr. Zwerdling?
Dr. Zwerdling is listed at 10112 KENSINGTON PKWY, Kensington, MD 20895. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Zwerdling?
The number on file is (301) 587-3430. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Zwerdling?
Dr. Zwerdling's National Provider Identifier is 1679679609. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Zwerdling's medical education?
Dr. Zwerdling attended Yale University School of Medicine, graduating in 1975. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Zwerdling have?
Dr. Zwerdling has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Zwerdling known for?
According to Medicare billing data, Dr. Zwerdling provides treatments such as psychotherapy with evaluation and management visit, 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Zwerdling's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Zwerdling. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (301) 587-3430
- Email not available
Practice Locations
10112 KENSINGTON PKWY
Kensington, MD 20895
Procedures Most Often Billed to Medicare
327 services · 36 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
109 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
218 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatry specialists in Kensington 8
Same specialty, same city.
Trained at Yale University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1975 at Yale University School of Medicine 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in MD who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.