NPPES file of Aug 9, 2026

Michael T. Johnson, MD

Obstetrics & Gynecology Physician · Los Angeles, CA

Michael T. Johnson, MD is an obstetrics & gynecology physician with a practice address in Los Angeles, California, and NPI 1619048659, issued on Nov 13, 2006. Check the license (California G76807, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1619048659
Name
Michael T. Johnson
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
G76807 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Medical Plz, Los Angeles, CA 90095
Phone
(310) 301-8707
Enumerated
Nov 13, 2006
Record last updated
Feb 13, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid ID
00G768070 CA
Medicare enrollment
Enrolled (PECOS I20070614000295); accepts Medicare assignment
Medical or professional school
University Of California, Geffen School Of Medicine, 1990
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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Also registered at 200 Medical Plz

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

  1. Elliot Abemayor, MDSurgery Physician1972527414
  2. Zain Al-Safi, M.D.Obstetrics & Gynecology Physician1578728317
  3. Paul AllynInfectious Disease Physician1588831341
  4. Richard Aranda, MDGastroenterology Physician1104851138
  5. Nilo Arnaiz, MDPulmonary Disease Physician1386678498
  6. Robyn Banerjee, MDRadiation Oncology Physician1174879795

Verify Michael T. Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G76807
    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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4.4 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024

722 Medicare Part D claims for 164 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Michael Johnson722
  2. Specialty average165

Most prescribed

  1. Estradiol249 claims
  2. Progesterone114 claims
  3. Fluconazole52 claims
  4. Premarin37 claims
  5. Nystatin21 claims
  6. Vivelle-Dot16 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 77.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.5
  2. Costout of 100 · 30%39.9
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. The Regents OF The University OF CaliforniaLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Michael T. Johnson among 5,088 obstetrics & gynecology physician records in California

Michael T. Johnson, MD is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1990 · median 2004 among the 2,700 with a school on file
  • Record last updated2015 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Gayane Ambartsumyan, MDLos Angeles, CA 900951174556849
  2. Tamara Grisales, M.D.Los Angeles, CA 900951063611762
  3. Andy Huang, M.D.Los Angeles, CA 900951134244924
  4. Cheri Lowre, MDLos Angeles, CA 900951215967948
  5. Michael Lu, MDLos Angeles, CA 900951316972219
  6. Lauren Nathan, MDLos Angeles, CA 900951235164039
  7. Lisa Nicholas, MDLos Angeles, CA 900951750380648
  8. Kristine Penner Klein, MDLos Angeles, CA 900951346454501

Common questions

What is Michael T. Johnson, MD's NPI number?

Michael T. Johnson, MD's National Provider Identifier (NPI) is 1619048659, issued on Nov 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael T. Johnson, MD located?

The NPPES record lists a practice address at 200 Medical Plz, Los Angeles, CA, 90095. Phone: (310) 301-8707. Providers update this record themselves, so call before visiting.

How can I verify Michael T. Johnson, MD's license?

NPPES lists California license number G76807, 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 Michael T. Johnson, MD prescribe under Medicare Part D?

In 2024, Michael T. Johnson, MD had 722 Medicare Part D claims for 164 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

What is Michael T. Johnson, MD's MIPS final score?

The 2023 MIPS final score is 77.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.