DOUGLAS EDWARD RITTENHOUSE (MD) – Obstetrics & Gynecology Physician, NPI 1386717023
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,008 OBSTETRICS/GYNECOLOGY in CA
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Provider Addresses for DOUGLAS EDWARD RITTENHOUSE (MD)
1850, Sullivan Avenue, Daly City, San Mateo County, California, 94015, United States
#550
DALY CITY, CA 94015
Phone: (650) 756-2404
Fax: (650) 994-9646
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 12 Open Payments records for all available years, with a total value of $369.
Total Amount is formed as General ($369) + Research ($0) + Ownership ($0) = $369.
Last reported payment date: 2024-10-05 • Largest payer in this snapshot: Myriad Women's Health, Inc. ($83).
Total Amount
$369
General + Research + Ownership
Payments
12
Total payment records
General Amount
$369
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-05
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Myriad Women's Health, Inc. | $83 |
| ABBVIE INC. | $49 |
| Hologic Sales and Service, LLC | $36 |
| Ethicon US, LLC | $35 |
| Amgen Inc. | $33 |
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: 2010-03-08
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
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 |
|---|---|---|---|---|
| I20100308000738 | I | Obstetrics/Gynecology | CA | 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 |
|---|---|---|---|---|
| G0101 | Cervical or vaginal cancer screening; pelvic and clinical breast examination | 22 | 22 | $0 |
Insurance plans in this area (ZIP 94015)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Allergy/Immunology, Pediatric Medicine | CA | |
| Internal Medicine, Allergy/Immunology | TX | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Nurse Practitioner | CA | |
| A L L E R G Y/ I M M U N O L O G Y | CA | |
| Nurse Practitioner | CA | |
| A L L E R G Y/ I M M U N O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| Allergy/Immunology, Internal Medicine | NE |
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