NPPES file of Aug 9, 2026

Paul Richard Mascovich, MD

Psychiatry Physician · Petaluma, CA

Paul Richard Mascovich, MD is a psychiatry physician with a practice address in Petaluma, California, and NPI 1215921184, issued on Sep 7, 2005. Check the license (California G33950, 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
1215921184
Name
Paul Richard Mascovich
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
G33950 CA
Self-reported in NPPES; status is on the state search
Practice location
322 Jacquelyn LN, Petaluma, CA 94952
Phone
(970) 778-5810
Enumerated
Sep 7, 2005
Record last updated
Dec 20, 2013 (not updated in 13 years: call before relying on the address or phone)
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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Verify Paul Richard Mascovich in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G33950
    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

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60% fewer Medicare Part D claims than the average psychiatry physician in 2024

397 Medicare Part D claims for 24 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Paul Mascovich397
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate44 claims
  2. Duloxetine Hcl39 claims
  3. Lurasidone Hcl29 claims
  4. Trazodone Hcl29 claims
  5. Clonazepam26 claims
  6. Bupropion Xl20 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.

Paul Richard Mascovich among 8,673 psychiatry physician records in California

Paul Richard Mascovich, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 98% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2013 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. David Anderson, M.D.Petaluma, CA 949521548338551
  2. David Browne, M.D.Petaluma, CA 949521023125226
  3. Alan Dubin, M.D.Petaluma, CA 949521386778348
  4. Orren Perlman, MDPetaluma, CA 949521578570016
  5. Megan Thurmond, M.D.Petaluma, CA 949521437486719
  6. Sophie Aneson-Macleon, M.D.Petaluma, CA 949541316007156
  7. Edna Rivera, MDPetaluma, CA 949541184796922
  8. Francisco Vielma, NPPetaluma, CA 949541912698663

Common questions

What is Paul Richard Mascovich, MD's NPI number?

Paul Richard Mascovich, MD's National Provider Identifier (NPI) is 1215921184, issued on Sep 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Paul Richard Mascovich, MD located?

The NPPES record lists a practice address at 322 Jacquelyn LN, Petaluma, CA, 94952. Phone: (970) 778-5810. Providers update this record themselves, so call before visiting.

How can I verify Paul Richard Mascovich, MD's license?

NPPES lists California license number G33950, 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 Paul Richard Mascovich, MD prescribe under Medicare Part D?

In 2024, Paul Richard Mascovich, MD had 397 Medicare Part D claims for 24 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.