NPPES file of Aug 9, 2026

Michael James Leininger, MSN, RN, AGACNP-BC

Critical Care Medicine Nurse Practitioner · San Francisco, CA

Michael James Leininger, MSN, RN, AGACNP-BC is a critical care medicine nurse practitioner with a practice address in San Francisco, California, and NPI 1174178933, issued on Aug 7, 2019. Check the license (California 95015990, as entered in NPPES) with the California board that licenses this profession; 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
1174178933
Name
Michael James Leininger
Credential
MSN, RN, AGACNP-BC
Primary taxonomy
Critical Care Medicine Nurse Practitioner 363LC0200X
License numbers
95015990 CA
95043215 CA
Self-reported in NPPES; status is on the state search
Practice location
3555 Cesar Chavez, San Francisco, CA 94110
Phone
(415) 600-6000
Enumerated
Aug 7, 2019
Record last updated
Nov 19, 2020 (not updated in 6 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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Also registered at 3555 Cesar Chavez

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

  1. Jacob Aaron, MDInternal Medicine Physician1407202518
  2. Connie Amorde, P.A.-CPhysician Assistant1306884846
  3. Kamran AtabaiInternal Medicine Physician1992816680
  4. Enrique AyaldeCritical Care Medicine Nurse Practitioner1235696584
  5. Nader Banki, MDInternal Medicine Physician1518029792
  6. Efren Baria, DOPain Medicine (Anesthesiology) Physician1609982115

Verify Michael James Leininger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95015990
    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
Find the California license search

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84% fewer Medicare Part D claims than the average critical care medicine nurse practitioner in 2024

66 Medicare Part D claims for 36 beneficiaries, against an average of 412 among the 396 providers of this specialty who prescribed in Part D. 29 claims were for opioids.

  1. Michael Leininger66
  2. Specialty average412

Most prescribed

  1. Oxycodone Hcl13 claims
  2. Naloxone Hcl12 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.

Michael James Leininger among 81 critical care medicine nurse practitioner records in California

Michael James Leininger, MSN, RN, AGACNP-BC is one of 81 critical care medicine nurse practitioner records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 42% of them.

  • NPI issued2019 · 42% of these records are older, 42% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2020 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LC0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine Nurse Practitioner providers in California

There are 81 critical care medicine nurse practitioner records in California.

The 8 critical care medicine nurse practitioner records with the nearest ZIP codes

  1. Enrique AyaldeSan Francisco, CA 941101235696584
  2. Chi Wing Pang, ACNPC-AGSan Francisco, CA 941101033716311
  3. Riley Puleo, ACNPC-AG, AGACNP-BCSan Francisco, CA 941091043051840
  4. Colin Trachsel, NPSan Francisco, CA 941091689362360
  5. Brooke Carpenter, NPSan Francisco, CA 941151629584099
  6. Anne Fredericks, NPSan Francisco, CA 941151164671178
  7. Nicole Carrillo, RN, MS, ACNPSan Francisco, CA 941171114934346
  8. Angelynn KitzerowSan Francisco, CA 941221629528278

Common questions

What is Michael James Leininger, MSN, RN, AGACNP-BC's NPI number?

Michael James Leininger, MSN, RN, AGACNP-BC's National Provider Identifier (NPI) is 1174178933, issued on Aug 7, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Michael James Leininger, MSN, RN, AGACNP-BC located?

The NPPES record lists a practice address at 3555 Cesar Chavez, San Francisco, CA, 94110. Phone: (415) 600-6000. Providers update this record themselves, so call before visiting.

How can I verify Michael James Leininger, MSN, RN, AGACNP-BC's license?

NPPES lists California license number 95015990, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Michael James Leininger, MSN, RN, AGACNP-BC prescribe under Medicare Part D?

In 2024, Michael James Leininger, MSN, RN, AGACNP-BC had 66 Medicare Part D claims for 36 beneficiaries; the average among critical care medicine nurse practitioner prescribers was 412. 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.