MR. ALLEN CHINPIN CHOU (MD) – Geriatric Medicine (Internal Medicine) Physician, NPI 1215919915
Geriatric Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
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Provider Addresses for MR. ALLEN CHINPIN CHOU (MD)
Garden Grove Boulevard, Garden Grove, Orange County, California, 92842, United States
SUITE 502-B
GARDEN GROVE, CA 928431901
Phone: (714) 534-2222
Fax: (714) 534-0818
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 2 Open Payments records for all available years, with a total value of $41.
Total Amount is formed as General ($41) + Research ($0) + Ownership ($0) = $41.
Last reported payment date: 2024-09-10 • Largest payer in this snapshot: Exact Sciences Corporation ($22).
Total Amount
$41
General + Research + Ownership
Payments
2
Total payment records
General Amount
$41
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Exact Sciences Corporation | $22 |
| Merck Sharp & Dohme LLC | $19 |
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: 2010-11-04
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 |
|---|---|---|---|---|
| I20101104001016 | I | Internal 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 59 | 36 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 58 | 36 | $0 |
Insurance plans in this area (ZIP 92843)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice, General Practice | CA | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine, Sleep Medicine | CA | |
| Nurse Practitioner | CA | |
| Internal Medicine | CA | |
| Pulmonary Disease, Critical Care (Intensivists), Internal Medicine | CA | |
| Family Practice | CA | |
| - | CA | |
| Internal Medicine | CA | |
| Internal Medicine | CA | |
| Internal Medicine | CA |
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