James Warren Boozer, MD
Internal Medicine Physician · Modesto, CA
James Warren Boozer, MD is an internal medicine physician with a practice address in Modesto, California, and NPI 1427046986, issued on Oct 10, 2005. Check the license (California G55121, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Warren Boozer
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G55121 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1541 Florida Ave, Modesto, CA 95350
- Phone
- (209) 577-3388
- Enumerated
- Oct 10, 2005
- Record last updated
- Jan 17, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (209) 523-0764
- Medicare enrollment
- Enrolled (PECOS I20080724000678); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1541 Florida Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Warren Boozer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55121Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.1 times the Medicare Part D claims of the average internal medicine physician in 2024
16,112 Medicare Part D claims for 1,006 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 595 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,021 claims
- Levothyroxine Sodium850 claims
- Losartan Potassium664 claims
- Amlodipine Besylate603 claims
- Lisinopril489 claims
- Gabapentin431 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 2 group practices
- Shane Speirs MD PCModesto, CA
- Sonora Community HospitalGroveland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Warren Boozer among 17,696 internal medicine physician records in California
James Warren Boozer, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1984 · median 2004 among the 11,065 with a school on file
- Record last updated2017 · 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).
129 internal medicine physician records list a practice address in Modesto
They are 129 of the 9,262 NPPES records with a practice address in Modesto, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Modesto → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Humayun Abbas, MDModesto, CA 953501336136548
- Kit Duong, MDModesto, CA 953501114984051
- Barbara Kennedy-Funtila, MDModesto, CA 953501700874260
- Elliott Metcalfe, MDModesto, CA 953501295703692
- Tushar Modi, M.D.Modesto, CA 953501679551352
- Priti Modi, M.D., F.A.C.P.Modesto, CA 953501568440246
- Anita Prabhu, M.DModesto, CA 953501851312060
- Suhail Rahhal, MDModesto, CA 953501326044876
Common questions
What is James Warren Boozer, MD's NPI number?
James Warren Boozer, MD's National Provider Identifier (NPI) is 1427046986, issued on Oct 10, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James Warren Boozer, MD located?
The NPPES record lists a practice address at 1541 Florida Ave, Modesto, CA, 95350. Phone: (209) 577-3388. Providers update this record themselves, so call before visiting.
How can I verify James Warren Boozer, MD's license?
NPPES lists California license number G55121, 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.
How much does James Warren Boozer, MD prescribe under Medicare Part D?
In 2024, James Warren Boozer, MD had 16,112 Medicare Part D claims for 1,006 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.