DR. WILLIAM C. CHOW (D.O.) – Specialist, NPI 1417981192
Specialist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
2,140 DERMATOLOGY in CA
Provider Addresses for DR. WILLIAM C. CHOW (D.O.)
2999, Regent Street, Elmwood, Berkeley, Alameda County, California, 94705, United States
STE 401
BERKELEY, CA 947052119
Phone: (510) 895-0510
Type: Mailing
795 E. Second St.
Suite 5
Pomona, CA 917662007
Phone: (909) 865-2565
Fax: (909) 865-2955
Type: Location
501 BEALE ST
PH 1B
SAN FRANCISCO, CA 941055025
Phone: (510) 895-0510
Type: Mailing
3120 WEBSTER ST
OAKLAND, CA 946093421
Phone: (510) 681-8587
Fax: (888) 939-4229
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $368.
Total Amount is formed as General ($368) + Research ($0) + Ownership ($0) = $368.
Last reported payment date: 2024-10-26 • Largest payer in this snapshot: UCB, Inc. ($199).
Total Amount
$368
General + Research + Ownership
Payments
7
Total payment records
General Amount
$368
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| UCB, Inc. | $199 |
| Regeneron Healthcare Solutions, Inc. | $148 |
| Dermavant Sciences, Inc. | $22 |
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: 2023-12-07
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 6 Medicare enrollment records; no due dates published yet.
Enrollment records
6
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 |
|---|---|---|---|---|
| I20050502001223 | I | Micrographic Dermatologic Surgery (Mds) | CA | TBD |
| I20210716000310 | I | Dermatology | SC | TBD |
| I20210910001280 | I | Micrographic Dermatologic Surgery (Mds) | GA | TBD |
| I20220204001105 | I | Dermatology | FL | TBD |
| I20220316001375 | I | Dermatology | AL | TBD |
| I20231207002273 | I | Dermatology | GA | 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 |
|---|---|---|---|---|
| 17311 | Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | 390 | 338 | $0 |
| 17312 | Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 191 | 124 | $0 |
| 12032 | Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm | 132 | 118 | $0 |
| 11602 | Removal of cancer skin growth of body, arms, or legs, 1.1-2.0 cm | 117 | 100 | $0 |
| 13132 | Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm | 81 | 77 | $0 |
Insurance plans in this area (ZIP 94705)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| DERMATOLOGY | CA | 13132 | Repair of wound (2.6 to 7.5 centimeters) of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, and/or feet | 153 | 134 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| D E R M A T O L O G Y | AL | |
| D E R M A T O L O G Y | OR | |
| Nurse Practitioner | AL | |
| D E R M A T O L O G Y | AL | |
| Nurse Practitioner | AL |
Reviews
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