Jay Zimmerman, M.D.
NPI 1396789731 · Dermatology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jay Zimmerman, M.D. is a Dermatology Physician provider in Walnut Creek, CA (NPI 1396789731).
Provider details
- NPI number
- 1396789731
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A5124 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
9,509 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 3,794 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,400 | $116 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 812 | $75 |
| Therapy Procedure Using Ultraviolet Radiation With Tar Or Petroleum Jelly Application96910 | 796 | $176 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 635 | $162 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 285 | 188 |
| Ketoconazole | 282 | 124 |
| Clobetasol Propionate | 206 | 109 |
| Betamethasone Dipropionate | 172 | 112 |
| Ciclopirox | 86 | 44 |
| Doxycycline Monohydrate | 79 | 38 |
| Valacyclovir Hclbrand: Valacyclovir | 61 | 26 |
| Metronidazole | 56 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,043 across 151 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1200 Central Blvd Ste DBrentwood, CA 94513-2227Phone: (925) 308-9510Fax: (925) 626-7968
Registry dates
- Enumerated
- 2006-06-16
- Last updated
- 2022-07-21
Frequently asked questions
- What is Jay Zimmerman's NPI number?
- Jay Zimmerman's National Provider Identifier (NPI) is 1396789731, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Zimmerman's specialty?
- Jay Zimmerman is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Jay Zimmerman located?
- Jay Zimmerman's practice location on file with NPPES is 2255 Ygnacio Valley Rd Ste B1, Walnut Creek, CA 94598-3335.
- What is Jay Zimmerman's phone number?
- The practice phone number listed in the NPPES registry for Jay Zimmerman is (925) 945-7005.
- Does Jay Zimmerman accept Medicare?
- Jay Zimmerman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jay Zimmerman's NPI active?
- Yes — Jay Zimmerman's NPI (1396789731) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.