Justin Spencer Libaw
Anesthesiology Physician · San Francisco, CA
Justin Spencer Libaw is an anesthesiology physician with a practice address in San Francisco, California, and NPI 1932594165, issued on Apr 3, 2015. Check the license (California A149025, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Justin Spencer Libaw
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A149025 CA
Self-reported in NPPES; status is on the state search - Practice location
- 513 Parnassus Ave # S436, San Francisco, CA 94143
- Phone
- (415) 514-3781
- Enumerated
- Apr 3, 2015
- Record last updated
- Oct 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200407003784); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 2015
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 513 Parnassus Ave # S436
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryan Barrera, MDAnesthesiology Physician1043770191
- Christopher Calciano, MDStudent in an Organized Health Care Education/Training Program1336941806
- Joyce Chang, M.D.Anesthesiology Physician1144507120
- Gregory Chinn, M.D./PH.D.Student in an Organized Health Care Education/Training Program1649614595
- Kevin EappenStudent in an Organized Health Care Education/Training Program1174463418
- Lindsey Huddleston, M.D.Anesthesiology Physician1982991915
Verify Justin Spencer Libaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A149025Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- University Anesthesia Medical GroupSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Spencer Libaw among 7,571 anesthesiology physician records in California
Justin Spencer Libaw 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 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2015 · median 2006 among the 4,868 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
499 anesthesiology physician records list a practice address in San Francisco
They are 499 of the 38,143 NPPES records with a practice address in San Francisco, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in San Francisco → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Philip Bickler, MDSan Francisco, CA 941431245295450
- Ronald Braun, M.D.San Francisco, CA 941431700865367
- Neal Cohen, MDSan Francisco, CA 941431790740504
- Helge Eilers, MDSan Francisco, CA 941431134182884
- Adrian Gelb, MDSan Francisco, CA 941431568427185
- Michael Gropper, MDSan Francisco, CA 941431699730416
- Jeffrey Katz, MDSan Francisco, CA 941431295790913
- Terry Kim, MDSan Francisco, CA 941431972578524
Common questions
What is Justin Spencer Libaw's NPI number?
Justin Spencer Libaw's National Provider Identifier (NPI) is 1932594165, issued on Apr 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Justin Spencer Libaw located?
The NPPES record lists a practice address at 513 Parnassus Ave # S436, San Francisco, CA, 94143. Phone: (415) 514-3781. Providers update this record themselves, so call before visiting.
How can I verify Justin Spencer Libaw's license?
NPPES lists California license number A149025, 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.