Justin Nicholas Hamman, MD
Anesthesiology Physician · Sacramento, CA
Justin Nicholas Hamman, MD is an anesthesiology physician with a practice address in Sacramento, California, and NPI 1245859818, issued on Apr 13, 2020. Check the license (California A183010, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Justin Nicholas Hamman
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A183010 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4150 V Street, Pssb 1200, Sacramento, CA 95817
- Phone
- (916) 734-5028
- Enumerated
- Apr 13, 2020
- Record last updated
- Jul 28, 2025
- Medicare enrollment
- Enrolled (PECOS I20250811003778); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 4150 V Street, Pssb 1200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Justin Nicholas Hamman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A183010Check 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 2 group practices
- Central Anesthesia Service Exchange Medical Group IncSacramento, CA
- Regents OF The Univ OF CASacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Justin Nicholas Hamman among 7,571 anesthesiology physician records in California
Justin Nicholas Hamman, MD 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 2020, is newer than 92% of them.
- NPI issued2020 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2020 · median 2006 among the 4,868 with a school on file
- Record last updated2025 · 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).
396 anesthesiology physician records list a practice address in Sacramento
They are 396 of the 33,083 NPPES records with a practice address in Sacramento, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Sacramento → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Christian Bohringer, M.D.Sacramento, CA 958171841275955
- Ian Brodkin, M.D.Sacramento, CA 958171487639597
- Jaiyong Choi, M.D.Sacramento, CA 958171336122068
- Rajvinder Dhamrait, M.D.Sacramento, CA 958171265417372
- Neal Fleming, M.D.Sacramento, CA 958171346225455
- Matthew Grow, M.D.Sacramento, CA 958171982689097
- Gary Levin, M.D.Sacramento, CA 958171336124254
- Shaoxiong Liu, MDSacramento, CA 958171376543975
Common questions
What is Justin Nicholas Hamman, MD's NPI number?
Justin Nicholas Hamman, MD's National Provider Identifier (NPI) is 1245859818, issued on Apr 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Justin Nicholas Hamman, MD located?
The NPPES record lists a practice address at 4150 V Street, Pssb 1200, Sacramento, CA, 95817. Phone: (916) 734-5028. Providers update this record themselves, so call before visiting.
How can I verify Justin Nicholas Hamman, MD's license?
NPPES lists California license number A183010, 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.