NPPES file of Aug 9, 2026

Brian Mackin, M.D.

Psychiatry Physician · Sacramento, CA

Brian Mackin, M.D. is a psychiatry physician with a practice address in Sacramento, California, and NPI 1144294349, issued on Feb 14, 2006. Check the license (California A85142, 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
1144294349
Name
Brian Mackin
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A85142 CA
Self-reported in NPPES; status is on the state search
Practice location
2001 N St Ste 100, Sacramento, CA 95811
Phone
(916) 932-0380
Enumerated
Feb 14, 2006
Record last updated
Jul 26, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(916) 932-0381
Medicare enrollment
Enrolled (PECOS I20251024001050); accepts Medicare assignment
Medical or professional school
Medical College Of Georgia School Of Medicine, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Brian Mackin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85142
    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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93% fewer Medicare Part D claims than the average psychiatry physician in 2024

70 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Brian Mackin70
  2. Specialty average1,000

Most prescribed

  1. Lamotrigine12 claims
  2. Buprenorphine Hcl11 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.

Brian Mackin among 8,673 psychiatry physician records in California

Brian Mackin, M.D. 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2002 · median 2005 among the 3,295 with a school on file
  • Record last updated2021 · 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).

331 psychiatry physician records list a practice address in Sacramento

They are 331 of the 33,083 NPPES records with a practice address in Sacramento, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Kristina Antonson, M.D.Sacramento, CA 958111881821270
  2. Amarsha Chakraburtty, MDSacramento, CA 958111891181186
  3. Barbara Fattig, M.D.Sacramento, CA 958111558652578
  4. Samita Gandhi, M.D.Sacramento, CA 958111821308149
  5. Eun Kyung Lee, M.D.,M.S.Sacramento, CA 958111245626639
  6. Caroline Sanderson, MDSacramento, CA 958111609371806
  7. David Sisemore, D.O.Sacramento, CA 958111598739575
  8. Ken Weinstock, M.D.Sacramento, CA 958111265406268

Common questions

What is Brian Mackin, M.D.'s NPI number?

Brian Mackin, M.D.'s National Provider Identifier (NPI) is 1144294349, issued on Feb 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian Mackin, M.D. located?

The NPPES record lists a practice address at 2001 N St Ste 100, Sacramento, CA, 95811. Phone: (916) 932-0380. Providers update this record themselves, so call before visiting.

How can I verify Brian Mackin, M.D.'s license?

NPPES lists California license number A85142, 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 Brian Mackin, M.D. prescribe under Medicare Part D?

In 2024, Brian Mackin, M.D. had 70 Medicare Part D claims; 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.