DR. MARK JAMES FINCH (M.D.) – Infectious Disease Physician, NPI 1730248196
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,003 INFECTIOUS DISEASE in CA
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Provider Addresses for DR. MARK JAMES FINCH (M.D.)
P.O. BOX 20598
CASTRO VALLEY, CA 94552
Phone: (510) 881-0644
Fax: (510) 881-0644
Type: Mailing
Saint Rose Hospital, 27200, Calaroga Avenue, Hayward, Alameda County, California, 94545, United States
HAYWARD, CA 945454339
Phone: (510) 881-0644
Fax: (510) 881-0644
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $114.
Total Amount is formed as General ($114) + Research ($0) + Ownership ($0) = $114.
Last reported payment date: 2023-03-22 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($114).
Total Amount
$114
General + Research + Ownership
Payments
1
Total payment records
General Amount
$114
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-03-22
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $114 |
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: 2005-01-24
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 |
|---|---|---|---|---|
| I20050124000833 | I | Infectious Disease | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 493 | 111 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 75 | 68 | $0 |
| 99231 | Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 24 | 17 | $0 |
Insurance plans in this area (ZIP 94552)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Infectious Disease, Internal Medicine | CA | |
| Nurse Practitioner | AL | |
| Nurse Practitioner | CA | |
| - | CA |
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