NPPES file of Aug 9, 2026

Steven Mark Suydam, M.D.

Anesthesiology Physician · San Diego, CA

Steven Mark Suydam, M.D. is an anesthesiology physician with a practice address in San Diego, California, and NPI 1386856821, issued on May 4, 2007. Check the license (California A93493, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386856821
Name
Steven Mark Suydam
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A93493 CA
Self-reported in NPPES; status is on the state search
Practice location
3626 Ruffin RD, San Diego, CA 92123
Phone
(858) 565-9666
Enumerated
May 4, 2007
Record last updated
Nov 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(858) 565-9441
Medicare enrollment
Enrolled (PECOS I20081114000215); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 2004
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 3626 Ruffin RD

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

  1. Rolando Abada, M.D.Anesthesiology Physician1952319071
  2. Yvonne Ahn, MDAnesthesiology Physician1447407275
  3. Anthony Alarcon, M.D.Anesthesiology Physician1972745370
  4. Arti Amin, M.D.Anesthesiology Physician1124349774
  5. John Arnold, M.D.Anesthesiology Physician1306853585
  6. Gus Atkins, M.D.Anesthesiology Physician1821075987

Verify Steven Mark Suydam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A93493
    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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Bills Medicare through one group practice

  1. Regents OF The University OF CaliforniaSan Diego, CA

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

Steven Mark Suydam among 7,571 anesthesiology physician records in California

Steven Mark Suydam, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 47% of them.

  • NPI issued2007 · 47% of these records are older, 43% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2004 · median 2006 among the 4,868 with a school on file
  • Record last updated2021 · 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

686 anesthesiology physician records list a practice address in San Diego

They are 686 of the 52,937 NPPES records with a practice address in San Diego, and 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Gus Atkins, M.D.San Diego, CA 921231821075987
  2. Paul Cattafi, DOSan Diego, CA 921231538151543
  3. Fei Chen, M.D.San Diego, CA 921231144290701
  4. Eric Clark, M.D.San Diego, CA 921231720078470
  5. William Connell, M.D.San Diego, CA 921231609848027
  6. Hisham El-Tayeb, M.D.San Diego, CA 921231679544084
  7. Janice Fernandez, M.D.San Diego, CA 921231578549788
  8. Robert Howard, M.D.San Diego, CA 921231003889528

Common questions

What is Steven Mark Suydam, M.D.'s NPI number?

Steven Mark Suydam, M.D.'s National Provider Identifier (NPI) is 1386856821, issued on May 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Steven Mark Suydam, M.D. located?

The NPPES record lists a practice address at 3626 Ruffin RD, San Diego, CA, 92123. Phone: (858) 565-9666. Providers update this record themselves, so call before visiting.

How can I verify Steven Mark Suydam, M.D.'s license?

NPPES lists California license number A93493, 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.