James Nicholas Welch, MD
Specialist · Sacramento, CA
James Nicholas Welch, MD is a specialist with a practice address in Sacramento, California, and NPI 1821245820, issued on Aug 20, 2008. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Nicholas Welch
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- MD037322 DC
Self-reported in NPPES; status is on the state search - Practice location
- 4150 V St Ste 3400, Sacramento, CA 95817
- Phone
- (916) 734-7506
- Enumerated
- Aug 20, 2008
- Record last updated
- Nov 7, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (916) 734-4810
- Medicare enrollment
- Enrolled (PECOS I20110720000548); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 4150 V St Ste 3400
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Nicholas Welch in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average specialist in 2024
174 Medicare Part D claims for 29 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Entresto17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- 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).
James Nicholas Welch among 5,749 specialist records in California
James Nicholas Welch, MD is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2005 · median 1989 among the 1,075 with a school on file
- Record last updated2011 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Sacramento → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Robert Cardiff, M.D., PH.D.Sacramento, CA 958171871575597
- Jyuhn-Mirng Chen, M.D.Sacramento, CA 958171588647903
- Regina Gandour-Edwards, M.D.Sacramento, CA 958171285616904
- Claudia Greco, M.D.Sacramento, CA 958171629050356
- Ralph Green, M.D.Sacramento, CA 958171700868437
- Lydia Howell, M.D.Sacramento, CA 958171285616920
- Hanne Jensen, M.D.Sacramento, CA 958171598747222
- Thomas Konia, M.D.Sacramento, CA 958171306828033
Common questions
What is James Nicholas Welch, MD's NPI number?
James Nicholas Welch, MD's National Provider Identifier (NPI) is 1821245820, issued on Aug 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is James Nicholas Welch, MD located?
The NPPES record lists a practice address at 4150 V St Ste 3400, Sacramento, CA, 95817. Phone: (916) 734-7506. Providers update this record themselves, so call before visiting.
How can I verify James Nicholas Welch, MD's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James Nicholas Welch, MD prescribe under Medicare Part D?
In 2024, James Nicholas Welch, MD had 174 Medicare Part D claims for 29 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
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.