Physician Profile
Unclaimed ProfileAbout APFEL
Based in Boonville, CA, Mark Justin Apfel, M.D. is listed in the NPI registry under family practice. Mark graduated from State University of New York at Buffalo School of Medicine in 1973. Mark is also listed as specialising in family medicine.
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 does Dr. Apfel specialise in?
Dr. Apfel is a family practice in Boonville, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
Where is Dr. Apfel located?
Dr. Apfel is listed at 13500 AIRPORT ROAD, Boonville, CA 95415. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Apfel's phone number?
The number on file is (707) 895-3477. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Apfel?
Dr. Apfel's National Provider Identifier is 1538219779. 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
Where did Dr. Apfel go to medical school?
Dr. Apfel attended State University of New York at Buffalo School of Medicine, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Apfel have?
Dr. Apfel has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Apfel do most often?
According to Medicare billing data, Dr. Apfel the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Apfel's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Apfel. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (707) 895-3477
- Email not available
Practice Locations
13500 AIRPORT ROAD
Boonville, CA 95415
Procedures Most Often Billed to Medicare
30 services · 13 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
30 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family practices at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at State University of New York at Buffalo School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1973 at State University of New York at Buffalo School of Medicine 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.