NPPES file of Aug 9, 2026

Michael Sdao, MD

Internal Medicine Physician · San Francisco, CA

Michael Sdao, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1568540110, issued on Nov 1, 2006. Check the license (California G55559, 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
1568540110
Name
Michael Sdao
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G55559 CA
Self-reported in NPPES; status is on the state search
Practice location
2200 Ofarrell St, San Francisco, CA 94115
Phone
(415) 833-2000
Enumerated
Nov 1, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00G555590 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2200 Ofarrell St

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

  1. Luba Abascal, MDInternal Medicine Physician1023180874
  2. Mitchell Adachi, MDAnatomic Pathology Physician1720166366
  3. Lesley Aiken, MDInternal Medicine Physician1629156120
  4. Jonathan Alexander, MDHospitalist Physician1811075450
  5. Gabull Alhadhrami, NPAcute Care Nurse Practitioner1427124098
  6. Bryan Andrews, MDAnesthesiology Physician1609954239

Verify Michael Sdao in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G55559
    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: $21.85

1 payment: food and beverage; the largest payer was Almatica Pharma LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Sdao$21.85
  2. Specialty average$1,303.06

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

Michael Sdao among 17,696 internal medicine physician records in California

Michael Sdao, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,318 internal medicine physician records list a practice address in San Francisco

They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Gary Arsham, M.D.San Francisco, CA 941151487646758
  2. Richard Caplin, M.D.San Francisco, CA 941151568443455
  3. C Cooney, M.D.San Francisco, CA 941151255332094
  4. Sarita Dubey, MDSan Francisco, CA 941151316905466
  5. Meredith Heller, M.D.San Francisco, CA 941151073562096
  6. Alan Leung, MDSan Francisco, CA 941151245222330
  7. Susan Nguyen, MDSan Francisco, CA 941151164470696
  8. Daniel Null, MDSan Francisco, CA 941151689638744

Common questions

What is Michael Sdao, MD's NPI number?

Michael Sdao, MD's National Provider Identifier (NPI) is 1568540110, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Sdao, MD located?

The NPPES record lists a practice address at 2200 Ofarrell St, San Francisco, CA, 94115. Phone: (415) 833-2000. Providers update this record themselves, so call before visiting.

How can I verify Michael Sdao, MD's license?

NPPES lists California license number G55559, 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.