Stephen Lloyd Hansen, MD
Internal Medicine Physician · San Luis Obispo, CA
Stephen Lloyd Hansen, MD is an internal medicine physician with a practice address in San Luis Obispo, California, and NPI 1649200742, issued on Jul 4, 2006. Check the license (California C32222, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Stephen Lloyd Hansen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C32222 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1744 Alisal Ave, San Luis Obispo, CA 93401
- Phone
- (805) 544-2737
- Enumerated
- Jul 4, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (805) 544-5246
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Stephen Lloyd Hansen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C32222Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Stephen Lloyd Hansen among 17,696 internal medicine physician records in California
Stephen Lloyd Hansen, 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 not. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileNo · 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).
41 internal medicine physician records list a practice address in San Luis Obispo
They are 41 of the 3,403 NPPES records with a practice address in San Luis Obispo, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,696 in California → Every provider in San Luis Obispo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jeffrey Bloom, MDSan Luis Obispo, CA 934011154346377
- Deborah Cherry, M.D.San Luis Obispo, CA 934011063495356
- Grace Crittenden, MDSan Luis Obispo, CA 934011053343764
- Mark Donaldson, M.D.San Luis Obispo, CA 934011710923933
- Maureen Haas, M.D.San Luis Obispo, CA 934011760437230
- Jana Hanson, MDSan Luis Obispo, CA 934011508849894
- John Massaro, DOSan Luis Obispo, CA 934011588665293
- Leslie Michel, MDSan Luis Obispo, CA 934011184670820
Common questions
What is Stephen Lloyd Hansen, MD's NPI number?
Stephen Lloyd Hansen, MD's National Provider Identifier (NPI) is 1649200742, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Lloyd Hansen, MD located?
The NPPES record lists a practice address at 1744 Alisal Ave, San Luis Obispo, CA, 93401. Phone: (805) 544-2737. Providers update this record themselves, so call before visiting.
How can I verify Stephen Lloyd Hansen, MD's license?
NPPES lists California license number C32222, 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. 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.