Dr. Ken D. Weinstock, MD

  • Petaluma, CA
  • Psychiatrist
NPI1265406268PAC ID2062513740
Part D claims, 2024
767
Affiliated sites
2
Medical groups
2
Insurance carriers
3
State license
1
Practice address
1179 North Mcdowell Blvd, Petaluma, CA 94954
Practice phone
Call (707) 559-7500
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Petaluma Health Center

FQHC - Main Site · Petaluma, California

See all 4 affiliations

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Dr. Ken D. Weinstock is a psychiatrist in Petaluma, California

Dr. Weinstock practices at Petaluma Health Center in Petaluma, California.

Dr. Weinstock's NPI, 1265406268, was assigned on February 15, 2006. Dr. Weinstock graduated from UC Irvine School of Medicine in 2004. Dr. Weinstock holds California license A92787.

NPI and contact details
Medicare PAC ID
2062513740
NPI enumeration date
February 15, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(707) 559-7500
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
48
Medical school graduation
2004

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ken D. Weinstock practices at Petaluma Health Center in Petaluma, California

Dr. Weinstock's primary practice is Petaluma Health Center, at 1179 North Mcdowell Blvd, Petaluma, CA 94954. The practice phone is (707) 559-7500.

  • Petaluma Health Center
    1179 North Mcdowell Blvd, Petaluma, CA 94954Phone(707) 559-7500

Source: Dmand AI Affiliation Data

Dr. Ken D. Weinstock is affiliated with 2 sites of care and 2 medical groups

Dr. Weinstock's primary practice is Petaluma Health Center in Petaluma, California. The medical group on file is Petaluma Health Center. Dmand AI also links Dr. Weinstock to 1 more community health center and 1 medical group, each named with a free account. Dr. Weinstock's employer is on file too: a community health center (fqhc).

See all 4 affiliations for Dr. Weinstock

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ken D. Weinstock's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weinstock practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Petaluma Health CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Ken D. Weinstock is one of 6,803 psychiatrists in California

Psychiatry is Dr. Weinstock's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Weinstock is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dr. Weinstock is licensed in California.

Specialties and state licenses

  • Psychiatry, CaliforniaPrimaryLicense A92787 · 2005 to 2027 · taxonomy 2084P0800X

Clinical focus

Dmand AI lists ADHD, alcohol use disorders, anxiety, bipolar disorder, depression, drug use disorders, insomnia and schizophrenia among the conditions Dr. Weinstock treats.

Psychiatrists near Dr. Weinstock

Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.

6,803psychiatrists in California
2psychiatrists in Petaluma

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ken D. Weinstock's patients have a median age of 59

Across all payers, Dmand AI patient panel data puts Dr. Weinstock's median patient age at 59, with 62% women.

Dr. Weinstock's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women62%
  • Men38%

Source: Dmand AI Patient Panel Data

Dr. Ken D. Weinstock wrote 767 Medicare Part D claims in 2024

In 2024, Dr. Weinstock wrote 767 Medicare Part D claims for 76 patients. 89% of them were for generic drugs. CMS names the drug for 658 of them, across 25 drugs with 11 or more claims each, at $95,039 in total drug cost. In 2023, CMS named 756 claims across 25 drugs.

Part D claims, 2024767
Drugs named by CMS25
Total drug cost$95,039
Part D patients76

Dr. Weinstock's Part D claims by kind of drug, 2024

  • Generic686 claims89%
  • Brand-name81 claims11%

Dr. Weinstock's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Weinstock's Part D claims, 2024

  • Antipsychotics, patients 65 and over13%100 of 767 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7562024: 65813%

Drugs named by CMS: 25 in 2024, 25 in 2023.

See all prescribing by Dr. Weinstock

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Ken D. Weinstock takes part in Medicare

Dr. Weinstock accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Ken D. Weinstock graduated from UC Irvine School of Medicine

Dr. Weinstock graduated from UC Irvine School of Medicine in 2004.

  1. Medical schoolUC Irvine School of Medicine
  2. Board certified in psychiatryAmerican Board of Psychiatry and Neurology

Source: Dmand AI Professional Profile Data

Dr. Ken D. Weinstock accepts plans from 3 insurance carriers

Dr. Weinstock is in network with 3 carriers, including Blue Cross Blue Shield of Michigan, HCSC and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • HCSC
  • CMS Medicare

Plan types Dr. Weinstock accepts, by number of carriers

  1. Medicare2
  2. PPO2
  3. HMO1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Ken D. Weinstock's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ken D. Weinstock

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Ken D. Weinstock's NPI number?

Dr. Ken D. Weinstock's NPI number is 1265406268. It was assigned on February 15, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Ken D. Weinstock?

Dr. Ken D. Weinstock is a psychiatrist in Petaluma, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).

Where does Dr. Ken D. Weinstock practice?

Dr. Weinstock practices at 1179 North Mcdowell Blvd, Petaluma, CA 94954. Dr. Weinstock's primary practice is Petaluma Health Center in Petaluma, California. Dmand AI also links Dr. Weinstock to 1 community health center and 1 medical group.

What is Dr. Ken D. Weinstock's office phone number?

The practice phone on file for Dr. Weinstock is (707) 559-7500.

What is Dr. Ken D. Weinstock's medical license number?

Dr. Weinstock holds California license A92787.

What medical group is Dr. Ken D. Weinstock part of?

Dr. Weinstock is linked to Petaluma Health Center. Dmand AI links Dr. Weinstock to 1 more medical group.

Does Dr. Ken D. Weinstock accept Medicare?

Yes. CMS lists Dr. Weinstock as accepting Medicare assignment.

Is Dr. Ken D. Weinstock board certified?

Yes. Dr. Weinstock is board certified in psychiatry by the American Board of Psychiatry and Neurology.

Where did Dr. Ken D. Weinstock go to medical school?

Dr. Weinstock graduated from UC Irvine School of Medicine in 2004.

What drugs does Dr. Ken D. Weinstock prescribe most?

In 2024 Medicare Part D data, Dr. Weinstock's most prescribed drugs by claims were Quetiapine Fumarate, Lorazepam and Clonazepam.

How long has Dr. Ken D. Weinstock been practicing?

Dr. Weinstock graduated from medical school in 2004, 22 years ago.

What insurance does Dr. Ken D. Weinstock accept?

Dr. Weinstock is in network with 3 carriers, including Blue Cross Blue Shield of Michigan, HCSC and CMS Medicare. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

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