NPPES file of Aug 9, 2026

Hernan Antonio Bazan, M.D.

Vascular Surgery Physician · San Francisco, CA

Hernan Antonio Bazan, M.D. is a vascular surgery physician with a practice address in San Francisco, California, and NPI 1073714358, issued on May 31, 2007. Check the license (California C203948, 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
1073714358
Name
Hernan Antonio Bazan
Credential
M.D.
Primary taxonomy
Vascular Surgery Physician 2086S0129X
License numbers
C203948 CA
044485 CT
201525 LA
Self-reported in NPPES; status is on the state search
Practice location
1100 Van Ness Ave FL 5, San Francisco, CA 94109
Phone
(415) 537-8600
Enumerated
May 31, 2007
Record last updated
Nov 6, 2025
Medicaid IDs
01078003 MS
1014630 LA
Medicare enrollment
Enrolled (PECOS I20251120001281); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 2000
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.
Download card Updates feed

Also registered at 1100 Van Ness Ave FL 5

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

  1. G. AveryThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1154340289
  2. Steven Blumlein, MDCardiovascular Disease Physician1568473361
  3. Glenn Egrie, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1689646994
  4. Steven Hao, M.D.Clinical Cardiac Electrophysiology Physician1124019526
  5. Richard Hongo, M.D.Clinical Cardiac Electrophysiology Physician1386635787
  6. Gregg Jossart, M.D.Surgery Physician1518059229

Verify Hernan Antonio Bazan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C203948
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

20% more Medicare Part D claims than the average vascular surgery physician in 2024

241 Medicare Part D claims for 85 beneficiaries, against an average of 201 among the 3,936 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Hernan Bazan241
  2. Specialty average201

Most prescribed

  1. Clopidogrel131 claims
  2. Cilostazol44 claims
  3. Warfarin Sodium12 claims
  4. Eliquis11 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.

Industry payments in 2024: $1,742.59

16 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,059 providers of this specialty with any payment received $6,178.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hernan Bazan$1,742.59
  2. Specialty average$6,178.00

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. Ochsner Clinic LLCNew Orleans, LA
  2. Sutter Bay Medical FoundationNovato, CA

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

Hernan Antonio Bazan among 580 vascular surgery physician records in California

Hernan Antonio Bazan, M.D. is one of 580 vascular surgery physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.

  • NPI issued2007 · 46% of these records are older, 40% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2000 · median 2003 among the 411 with a school on file
  • Record last updated2025 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0129X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular Surgery Physician providers in California

There are 580 vascular surgery physician records in California.

The 8 vascular surgery physician records with the nearest ZIP codes

  1. Michael Hong, MDSan Francisco, CA 941091336342369
  2. Marc Levine, M.D.San Francisco, CA 941091801974332
  3. John Long, MDSan Francisco, CA 941091881761948
  4. Daniel Nathanson, MDSan Francisco, CA 941091467653006
  5. Susan Bailey, M.D.San Francisco, CA 941101487742425
  6. Adam Oskowitz, M.D., PH.D.San Francisco, CA 941101235457334
  7. Douglas Grey, MDSan Francisco, CA 941151972681583
  8. Hong Hua, MDSan Francisco, CA 941151457439051

Common questions

What is Hernan Antonio Bazan, M.D.'s NPI number?

Hernan Antonio Bazan, M.D.'s National Provider Identifier (NPI) is 1073714358, issued on May 31, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hernan Antonio Bazan, M.D. located?

The NPPES record lists a practice address at 1100 Van Ness Ave FL 5, San Francisco, CA, 94109. Phone: (415) 537-8600. Providers update this record themselves, so call before visiting.

How can I verify Hernan Antonio Bazan, M.D.'s license?

NPPES lists California license number C203948, 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 Hernan Antonio Bazan, M.D. prescribe under Medicare Part D?

In 2024, Hernan Antonio Bazan, M.D. had 241 Medicare Part D claims for 85 beneficiaries; the average among vascular surgery physician prescribers was 201. 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.