DR. RUSSELL C FRITZ (M.D.) – Diagnostic Radiology Physician, NPI 1679550032
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,800 DIAGNOSTIC RADIOLOGY in CA
Provider Addresses for DR. RUSSELL C FRITZ (M.D.)
3301 El Camino Real Ste 100
Atherton, CA 940273803
Phone: (650) 364-3080
Fax: (650) 364-2004
Type: Location
2351 Clay St Ste 100
San Francisco, CA 941151931
Phone: (415) 600-3143
Fax: (415) 600-3123
Type: Location
Novato Post Office, South Novato Boulevard, Novato, Marin County, California, 94945, United States
NOVATO, CA 949486102
Phone:
Type: Mailing
Marin General Hospital, 250, Bon Air Road, Skylark, Marin County, California, 94904, United States
GREENBRAE, CA 949041702
Phone: (415) 884-3415
Fax: (415) 883-0877
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2022-02-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 4 Medicare enrollment records; no due dates published yet.
Enrollment records
4
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040309000390 | I | Diagnostic Radiology | CA | TBD |
| I20050105000660 | I | Diagnostic Radiology | NJ | TBD |
| I20100331000760 | I | Diagnostic Radiology | HI | TBD |
| I20220217001492 | I | Diagnostic Radiology | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 73721 | Mri scan of leg joint without contrast | 883 | 793 | $0 |
| 73221 | Mri scan of arm joint without contrast | 874 | 805 | $0 |
Insurance plans in this area (ZIP 94027)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | AZ | |
| Diagnostic Radiology | CA | |
| - | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| - | CA | |
| - | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | OH |
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