Christopher F. Barnett, MD, MPH
Critical Care Medicine (Internal Medicine) Physician · San Francisco, CA
Christopher F. Barnett, MD, MPH is a critical care medicine (internal medicine) physician with a practice address in San Francisco, California, and NPI 1538127717, issued on May 4, 2006. Check the license (California A99520, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher F. Barnett
- Credential
- MD, MPH
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- A99520 CA
MD043864 DC
D0061892 MD
Self-reported in NPPES; status is on the state search - Practice location
- 535 Mission Bay Blvd S, San Francisco, CA 94143
- Phone
- (415) 353-3109
- Enumerated
- May 4, 2006
- Record last updated
- Oct 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (415) 353-2528
- Medicaid IDs
- 36932200 DC
408398900 MD - Medicare enrollment
- Enrolled (PECOS I20100301000475); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 723 in California → Look up another NPI →
Also registered at 535 Mission Bay Blvd S
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Athena Angelopoulos, MSGenetic Counselor (M.S.)1609352533
- Phoebe Ashley, M.D.Cardiovascular Disease Physician1740288901
- Joseph Bayne, M.D.Adult Congenital Heart Disease Physician1316301179
- Alexis Beatty, MDCardiovascular Disease Physician1851427520
- Jennifer Chang, PHARMDPharmacist1205672763
Verify Christopher F. Barnett in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A99520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
415 Medicare Part D claims for 33 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 50% of claims.
Most prescribed
- Opsumit86 claims
- Tadalafil68 claims
- Ambrisentan32 claims
- Uptravi32 claims
- Orenitram Er27 claims
- Spironolactone24 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): 74.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $14,486.53
30 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 2,708 providers of this specialty with any payment received $2,958.68 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- Regents OF The University OF CaliforniaSan Francisco, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher F. Barnett among 723 critical care medicine (internal medicine) physician records in California
Christopher F. Barnett, MD, MPH is one of 723 critical care medicine (internal medicine) physician records with a practice address in California. 87% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 60% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2001 · median 2005 among the 559 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X 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 (Internal Medicine) Physician providers in California
There are 723 critical care medicine (internal medicine) physician records in California.
All 723 in California → Every provider in San Francisco → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Sudhamayi Bhadriraju, M.D.San Francisco, CA 941431104116243
- Mallar Bhattacharya, MDSan Francisco, CA 941431063558757
- Samuel Brusca, M.D.San Francisco, CA 941431174942148
- Jonathan BudzikSan Francisco, CA 941431356632632
- Harold Collard, MDSan Francisco, CA 941431740245380
- Kenneth Fang, M.D.San Francisco, CA 941431760566020
- Yaron Gesthalter, MDSan Francisco, CA 941431013183599
- Stefano Iantorno, MD, PHDSan Francisco, CA 941431952860900
Common questions
What is Christopher F. Barnett, MD, MPH's NPI number?
Christopher F. Barnett, MD, MPH's National Provider Identifier (NPI) is 1538127717, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher F. Barnett, MD, MPH located?
The NPPES record lists a practice address at 535 Mission Bay Blvd S, San Francisco, CA, 94143. Phone: (415) 353-3109. Providers update this record themselves, so call before visiting.
How can I verify Christopher F. Barnett, MD, MPH's license?
NPPES lists California license number A99520, 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 Christopher F. Barnett, MD, MPH prescribe under Medicare Part D?
In 2024, Christopher F. Barnett, MD, MPH had 415 Medicare Part D claims for 33 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is Christopher F. Barnett, MD, MPH's MIPS final score?
The 2023 MIPS final score is 74.5 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.