NPPES file of Aug 9, 2026

Elaine Evelina Tseng, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · San Francisco, CA

Elaine Evelina Tseng, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in San Francisco, California, and NPI 1649243197, issued on Feb 7, 2006. Check the license (California G86536, 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
1649243197
Name
Elaine Evelina Tseng
Credential
M.D.
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License number
G86536 CA
Self-reported in NPPES; status is on the state search
Practice location
4150 Clement St, San Francisco, CA 94121
Phone
(415) 221-4810
Enumerated
Feb 7, 2006
Record last updated
Jul 1, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(415) 750-2181
Medicare enrollment
Enrolled (PECOS I20080227000674); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 1993
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 4150 Clement St

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

  1. Samantha Abram, BAPsychologist1326540436
  2. Gary Abrams, M.D.Physical Medicine & Rehabilitation Physician1346213246
  3. Anna Abramson, M.D.Internal Medicine Physician1346424785
  4. Alison Acerra, MS, RDRegistered Dietitian1992726848
  5. Sharon AdelsonCounselor1932467271
  6. Gary Agcaoili, C.T.R.SRecreation Therapist1649284019

Verify Elaine Evelina Tseng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G86536
    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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Industry payments in 2024: $295.49

2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elaine Tseng$295.49
  2. Specialty average$7,828.84

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

Bills Medicare through one group practice

  1. Ucsf Dept OF SurgerySan Francisco, CA

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

Elaine Evelina Tseng among 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California

Elaine Evelina Tseng, M.D. is one of 634 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in California. 75% 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 · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1993 · median 1997 among the 408 with a school on file
  • Record last updated2014 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California

There are 634 thoracic surgery (cardiothoracic vascular surgery) physician records in California.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Merrill Bronstein, M.D.San Francisco, CA 941181609151554
  2. Robert Ellis, M.D.San Francisco, CA 941171710036777
  3. Eddie Tang, M.D.San Francisco, CA 941171093729691
  4. Nora Burgess, MDSan Francisco, CA 941151417035049
  5. Brian Cain, MDSan Francisco, CA 941151205914900
  6. Keith Flachsbart, MDSan Francisco, CA 941151033297627
  7. Paul Lapunzina, MDSan Francisco, CA 941151720152333
  8. Hugh Mason, MDSan Francisco, CA 941151316025927

Common questions

What is Elaine Evelina Tseng, M.D.'s NPI number?

Elaine Evelina Tseng, M.D.'s National Provider Identifier (NPI) is 1649243197, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elaine Evelina Tseng, M.D. located?

The NPPES record lists a practice address at 4150 Clement St, San Francisco, CA, 94121. Phone: (415) 221-4810. Providers update this record themselves, so call before visiting.

How can I verify Elaine Evelina Tseng, M.D.'s license?

NPPES lists California license number G86536, 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.

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.