NPPES file of Aug 9, 2026

Steven L. Blumlein, MD

Cardiovascular Disease Physician · San Francisco, CA

Steven L. Blumlein, MD is a cardiovascular disease physician with a practice address in San Francisco, California, and NPI 1568473361, issued on Aug 10, 2006. Check the license (California G39578, 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
1568473361
Name
Steven L. Blumlein
Credential
MD
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
G39578 CA
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
Aug 10, 2006
Record last updated
Jan 15, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(415) 369-1371
Medicare enrollment
Enrolled (PECOS I20081212000251); accepts Medicare assignment
Medical or professional school
Medical College Of Wisconsin, 1978
Telehealth
Offers telehealth (CMS)
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 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. Hernan Bazan, M.D.Vascular Surgery Physician1073714358
  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 Steven L. Blumlein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G39578
    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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67% more Medicare Part D claims than the average cardiovascular disease physician in 2024

5,143 Medicare Part D claims for 622 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Steven Blumlein5,143
  2. Specialty average3,078

Most prescribed

  1. Atorvastatin Calcium604 claims
  2. Eliquis535 claims
  3. Amlodipine Besylate457 claims
  4. Metoprolol Succinate373 claims
  5. Carvedilol210 claims
  6. Losartan Potassium205 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.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Francisco, CA

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

Steven L. Blumlein among 2,574 cardiovascular disease physician records in California

Steven L. Blumlein, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 45% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1978 · median 1999 among the 1,742 with a school on file
  • Record last updated2020 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Michel Accad, M.D.San Francisco, CA 941091649389768
  2. Russell Ching, M.D.San Francisco, CA 941091477504330
  3. Mi Young ChoSan Francisco, CA 941091831953983
  4. Sung Choi, M.D.San Francisco, CA 941091013917046
  5. Allison Kratka, MDSan Francisco, CA 941091386134591
  6. Diana Lam, MDSan Francisco, CA 941091659455251
  7. Chun Yu Lee, M.D.San Francisco, CA 941091972860104
  8. Kevin Li, MDSan Francisco, CA 941091912427063

Common questions

What is Steven L. Blumlein, MD's NPI number?

Steven L. Blumlein, MD's National Provider Identifier (NPI) is 1568473361, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Steven L. Blumlein, MD 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 Steven L. Blumlein, MD's license?

NPPES lists California license number G39578, 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 Steven L. Blumlein, MD prescribe under Medicare Part D?

In 2024, Steven L. Blumlein, MD had 5,143 Medicare Part D claims for 622 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.