DR. DARBY ANNETTE CLAYSON (MD) – Military Health Care Provider, NPI 1619968021
Military Health Care Provider
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,302 HOSPITALIST in CA
Provider Addresses for DR. DARBY ANNETTE CLAYSON (MD)
1575 7TH AVE
SAN FRANCISCO, CA 941223704
Phone: (702) 453-3799
Fax: (702) 453-5741
Type: Location
Seton Medical Center, 1900, Sullivan Avenue, Daly City, San Mateo County, California, 94015, United States
LOWER LEVEL
DALY CITY, CA 94015
Phone: (415) 680-4135
Fax: (702) 453-5741
Type: Mailing
PO BOX 31085
SAN FRANCISCO, CA 941310085
Phone: (702) 453-3799
Fax: (702) 453-5741
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $208.
Total Amount is formed as General ($208) + Research ($0) + Ownership ($0) = $208.
Last reported payment date: 2024-06-20 • Largest payer in this snapshot: Amgen Inc. ($129).
Total Amount
$208
General + Research + Ownership
Payments
2
Total payment records
General Amount
$208
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $129 |
| Janssen Pharmaceuticals, Inc | $79 |
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: 2016-03-23
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 |
|---|---|---|---|---|
| I20160323000586 | I | Hospitalist | 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 |
|---|---|---|---|---|
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 528 | 157 | $0 |
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 528 | 172 | $0 |
| 99305 | Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | 124 | 108 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 77 | 55 | $0 |
| 99306 | Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes | 76 | 74 | $0 |
Insurance plans in this area (ZIP 94122)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Hospitalist, Internal Medicine, Osteopathic Manipulative Medicine | CA | |
| H O S P I T A L I S T | CA | |
| Physician Assistant | CA | |
| Nurse Practitioner | FL | |
| H O S P I T A L I S T | CA | |
| Hospitalist, Internal Medicine | CA | |
| Internal Medicine, Hospitalist | CA | |
| Hospitalist, Family Practice | CA | |
| Hospitalist, Family Practice | CA |
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