NPPES file of Aug 9, 2026

Phyllis Cohen, M.D.

Family Medicine Physician · Santa Rosa, CA

Phyllis Cohen, M.D. is a family medicine physician with a practice address in Santa Rosa, California, and NPI 1407964000, issued on Aug 25, 2006. Check the license (California 535704, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407964000
Name
Phyllis Cohen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
535704 CA
Self-reported in NPPES; status is on the state search
Practice location
131 Stony Cir Ste 1600, Santa Rosa, CA 95401
Phone
(707) 541-7700
Enumerated
Aug 25, 2006
Record last updated
Mar 7, 2023
Fax
(707) 573-5415
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 131 Stony Cir Ste 1600

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Renee Armstrong, M.D.Family Medicine Physician1093899239
  2. Emily Baker, NPNurse Practitioner1811267552
  3. David Begert, M.D.Family Medicine Physician1184736159
  4. Leslie Brouillette, NPFamily Nurse Practitioner1962652479
  5. Glency Sue Marie Corominas, M.D.Family Medicine Physician1336593755
  6. Kirsten Covec, NPPediatric Nurse Practitioner1275761280

Verify Phyllis Cohen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 535704
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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81% fewer Medicare Part D claims than the average family medicine physician in 2024

685 Medicare Part D claims for 289 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 89 claims were for opioids.

  1. Phyllis Cohen685
  2. Specialty average3,544

Most prescribed

  1. Lorazepam49 claims
  2. Zolpidem Tartrate48 claims
  3. Hydrocodone-Acetaminophen47 claims
  4. Alprazolam25 claims
  5. Atorvastatin Calcium23 claims
  6. Divalproex Sodium18 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Phyllis Cohen among 17,133 family medicine physician records in California

Phyllis Cohen, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2023 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

264 family medicine physician records list a practice address in Santa Rosa

They are 264 of the 6,884 NPPES records with a practice address in Santa Rosa, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Roberta Berg, MDSanta Rosa, CA 954011689643884
  2. Jennifer Betts, MDSanta Rosa, CA 954011518965771
  3. Lambert Daniel, MDSanta Rosa, CA 954011487688941
  4. Ellen Kruusmagi, MDSanta Rosa, CA 954011003831793
  5. Marshall Kubota, MDSanta Rosa, CA 954011245297969
  6. Patricia Kulawiak, MDSanta Rosa, CA 954011487649711
  7. Carla Longchamp, M.D.Santa Rosa, CA 954011972544948
  8. Jeremy Mesches, MDSanta Rosa, CA 954011245207026

Common questions

What is Phyllis Cohen, M.D.'s NPI number?

Phyllis Cohen, M.D.'s National Provider Identifier (NPI) is 1407964000, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Phyllis Cohen, M.D. located?

The NPPES record lists a practice address at 131 Stony Cir Ste 1600, Santa Rosa, CA, 95401. Phone: (707) 541-7700. Providers update this record themselves, so call before visiting.

How can I verify Phyllis Cohen, M.D.'s license?

NPPES lists California license number 535704, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Phyllis Cohen, M.D. prescribe under Medicare Part D?

In 2024, Phyllis Cohen, M.D. had 685 Medicare Part D claims for 289 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.