NPPES file of Aug 9, 2026

John Palmer Greene, MD

Neurocritical Care Physician · San Francisco, CA

John Palmer Greene, MD is a neurocritical care physician with a practice address in San Francisco, California, and NPI 1205397841, issued on Mar 27, 2019. Check the license (California A179068, 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
1205397841
Name
John Palmer Greene
Credential
MD
Primary taxonomy
Neurocritical Care Physician 2084A2900X
License numbers
A179068 CA
125.074373 IL
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Avenue, M798, San Francisco, CA 94143
Phone
(415) 476-3891
Enumerated
Mar 27, 2019
Record last updated
Jan 14, 2025
Fax
(415) 476-3428
Medicare enrollment
Enrolled (PECOS I20230628002979); accepts Medicare assignment
Medical or professional school
University Of Chicago, Pritzker School Of Medicine, 2019
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 John Palmer Greene in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A179068
    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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83% fewer Medicare Part D claims than the average neurocritical care physician in 2024

19 Medicare Part D claims, against an average of 112 among the 141 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. John Greene19
  2. Specialty average112

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): 91.9 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 score83.5
  2. Costout of 100 · 30%68.0
  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).

Industry payments in 2024: $120.67

1 payment: food and beverage; the largest payer was Ceribell, Inc. The 251 providers of this specialty with any payment received $1,054.78 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Greene$120.67
  2. Specialty average$1,054.78

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Emory Medical Care Foundation IncAtlanta, GA
  2. University OF California Sfgh Medical GroupSan Francisco, CA

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

John Palmer Greene among 74 neurocritical care physician records in California

John Palmer Greene, MD is one of 74 neurocritical care physician records with a practice address in California. 97% 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 88% of them.

  • NPI issued2019 · 88% of these records are older, 8% newer
  • In a Medicare fileYes · 97% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated2019 · median 2011 among the 64 with a school on file
  • Record last updated2025 · 28% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084A2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurocritical Care Physician providers in California

There are 74 neurocritical care physician records in California.

The 8 neurocritical care physician records with the nearest ZIP codes

  1. Kenia Lucey, MDSan Francisco, CA 941431649899188
  2. Mariyam Saviour, BSC (HONS), MBCHBSan Francisco, CA 941431568037711
  3. Rana Moosavi, M.D.San Francisco, CA 941091871908301
  4. Marion Buckwalter, MDStanford, CA 943051356394589
  5. Karen Hirsch, MDStanford, CA 943051053516641
  6. Hannah Kirsch, MDStanford, CA 943051528479318
  7. Prashanth Krishnamohan, MDStanford, CA 943051457632432
  8. Lucia Rivera Lara, MDStanford, CA 943051356502744

Common questions

What is John Palmer Greene, MD's NPI number?

John Palmer Greene, MD's National Provider Identifier (NPI) is 1205397841, issued on Mar 27, 2019. An NPI identifies a provider in billing; it is not a license.

Where is John Palmer Greene, MD located?

The NPPES record lists a practice address at 505 Parnassus Avenue, M798, San Francisco, CA, 94143. Phone: (415) 476-3891. Providers update this record themselves, so call before visiting.

How can I verify John Palmer Greene, MD's license?

NPPES lists California license number A179068, 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 John Palmer Greene, MD prescribe under Medicare Part D?

In 2024, John Palmer Greene, MD had 19 Medicare Part D claims; the average among neurocritical care physician prescribers was 112. Part D covers Medicare prescriptions only.

What is John Palmer Greene, MD's MIPS final score?

The 2023 MIPS final score is 91.9 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.