Ken Weinstock, M.D.
NPI 1265406268 · Psychiatry Physician · Sacramento, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ken Weinstock, M.D. is a Psychiatry Physician provider in Sacramento, CA (NPI 1265406268).
Provider details
- NPI number
- 1265406268
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A92787 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Quetiapine Fumarate | 103 | 23 |
| Lorazepam | 48 | 13 |
| Clonazepam | 46 | 11 |
| Clozapine | 38 | — |
| Aripiprazole | 35 | 12 |
| Quetiapine Fumaratebrand: Quetiapine Fumarate Er | 34 | — |
| Olanzapine | 33 |
Practice location
Mailing address
Additional practice locations (1)
- 1179 N Mcdowell BlvdPetaluma, CA 94954-6559Phone: (707) 559-7500
Registry dates
- Enumerated
- 2006-02-15
- Last updated
- 2021-06-24
- Certified
- 2021-06-24
Frequently asked questions
- What is Ken Weinstock's NPI number?
- Ken Weinstock's National Provider Identifier (NPI) is 1265406268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ken Weinstock's specialty?
- Ken Weinstock is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ken Weinstock located?
- Ken Weinstock's practice location on file with NPPES is 2001 N St Ste 210, Sacramento, CA 95811-4237.
- What is Ken Weinstock's phone number?
- The practice phone number listed in the NPPES registry for Ken Weinstock is (916) 508-4069.
- Does Ken Weinstock accept Medicare?
- Ken Weinstock is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ken Weinstock's NPI active?
- Yes — Ken Weinstock's NPI (1265406268) is active in the NPPES registry as of the last update on 2021-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.