ANNA PEI-FEN LIN (MD) – Hospitalist Physician, NPI 1942303003
Hospitalist Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,386 PEDIATRIC MEDICINE in CA
Provider Addresses for ANNA PEI-FEN LIN (MD)
220 E 13th St
Merced, CA 953406242
Phone: (209) 723-3704
Fax: (209) 723-0272
Type: Location
725 WELCH RD
PALO ALTO, CA 943041601
Phone: (650) 497-8000
Type: Location
220, East 13th Street, Merced, Merced County, California, 95341, United States
MERCED, CA 953406242
Phone: (209) 723-3704
Fax: (209) 723-0272
Type: Location
Merced Post Office, West 18th Street, Merced, Merced County, California, 95340, United States
MERCED, CA 953443768
Phone: (209) 723-3704
Fax: (209) 723-0272
Type: Mailing
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: 2006-03-23
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 |
|---|---|---|---|---|
| I20060323000410 | I | Pediatric Medicine | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 95340)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MA | |
| - | CA | |
| - | CA | |
| Clinical Psychologist | CA | |
| Diagnostic Radiology | CO | |
| - | CA |
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