James Michael Larosa, M.D.
Family Medicine Physician · Wilmington, DE
James Michael Larosa, M.D. is a family medicine physician with a practice address in Wilmington, Delaware, and NPI 1902337124, issued on Mar 21, 2017. Check the license (Delaware C1-0013727, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- James Michael Larosa
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C1-0013727 DE
Self-reported in NPPES; status is on the state search - Practice location
- 1401 Foulk RD Ste 100B, Wilmington, DE 19803
- Phone
- (302) 477-3300
- Enumerated
- Mar 21, 2017
- Record last updated
- Jun 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (302) 477-3168
- Medicare enrollment
- Enrolled (PECOS I20200618000876); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 518 in Delaware → Look up another NPI →
Also registered at 1401 Foulk RD Ste 100B
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Rebecca Russell, MDFamily Medicine Physician1902365083
Verify James Michael Larosa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C1-0013727Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average family medicine physician in 2024
3,749 Medicare Part D claims for 360 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 33 claims were for opioids.
Most prescribed
- Atorvastatin Calcium333 claims
- Amlodipine Besylate243 claims
- Gabapentin171 claims
- Levothyroxine Sodium106 claims
- Metformin Hcl105 claims
- Omeprazole102 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
- Christiana Care Health Services IncWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Michael Larosa among 518 family medicine physician records in Delaware
James Michael Larosa, M.D. is one of 518 family medicine physician records with a practice address in Delaware. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 20% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2002 among the 323 with a school on file
- Record last updated2020 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 family medicine physician records list a practice address in Wilmington
They are 163 of the 6,291 NPPES records with a practice address in Wilmington, and 518 family medicine physician records in Delaware.
All 518 in Delaware → Every provider in Wilmington → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Bercaw, MDWilmington, DE 198031205814241
- Heather Bittner-Fagan, MDWilmington, DE 198031013995059
- David Estock, M.D.Wilmington, DE 198031275533135
- Lawrence Markman, MDWilmington, DE 198031154313179
- Lisa Maxwell, MDWilmington, DE 198031316978786
- M Metzger, M.D.Wilmington, DE 198031275564957
- Matthew O'Brien, M.D.Wilmington, DE 198031417996935
- James Salva, M.D.Wilmington, DE 198031538104856
Common questions
What is James Michael Larosa, M.D.'s NPI number?
James Michael Larosa, M.D.'s National Provider Identifier (NPI) is 1902337124, issued on Mar 21, 2017. An NPI identifies a provider in billing; it is not a license.
Where is James Michael Larosa, M.D. located?
The NPPES record lists a practice address at 1401 Foulk RD Ste 100B, Wilmington, DE, 19803. Phone: (302) 477-3300. Providers update this record themselves, so call before visiting.
How can I verify James Michael Larosa, M.D.'s license?
NPPES lists Delaware license number C1-0013727, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Michael Larosa, M.D. prescribe under Medicare Part D?
In 2024, James Michael Larosa, M.D. had 3,749 Medicare Part D claims for 360 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.