Physician Profile
Unclaimed ProfileAbout HARF
Based in Sonoma, CA, Robert Alan Harf, MD FACS is listed in the NPI registry under orthopedic surgery. Robert is also listed as specialising in orthopaedic surgery of the spine and orthopaedic surgery.
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 kind of doctor is Dr. Harf?
Dr. Harf is an orthopedic surgeon in Sonoma, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ORTHOPEDIC SURGERY”.
NPI registry
What is Dr. Harf's address?
Dr. Harf is listed at 181 ANDRIEUX ST STE 111, Sonoma, CA 95476. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Harf?
The number on file is (707) 996-8017. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Harf?
Dr. Harf's National Provider Identifier is 1023128741. 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. Harf train?
Dr. Harf attended Other, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Harf have?
Dr. Harf has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Harf perform?
According to Medicare billing data, Dr. Harf performs procedures including aspiration and/or injection of fluid from large joint and treatment of broken neck of thigh bone with bone implant; reads or performs imaging such as x-ray of lower and sacral spine, 2-3 views and x-ray of hip, 2-3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Harf's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Harf. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (707) 996-8017
- Email not available
Practice Locations
181 ANDRIEUX ST STE 111
Sonoma, CA 95476
Procedures Most Often Billed to Medicare
668 services · 444 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
37 |
| Treatment of broken neck of thigh bone with bone implant | Procedure | 27245 |
11 |
| X-ray of lower and sacral spine, 2-3 views | Imaging | 72100 |
34 |
| X-ray of hip, 2-3 views | Imaging | 73502 |
29 |
| Mri scan of lower spinal canal without contrast | Imaging | 72148 |
20 |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
17 |
| X-ray of knee, 1-2 views | Imaging | 73560 |
14 |
| Injection, methylprednisolone acetate, 1 mg | Drug given | J1010 |
62 |
| Injection, methylprednisolone acetate, 20 mg | Drug given | J1020 |
12 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
310 |
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 orthopedic surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 27 related providers in 4 groups
Other orthopedic surgeons in Sonoma 3
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1977 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in CA 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.