Naomitsu Watanabe, M.D.
Internal Medicine Physician · Milford, DE
Naomitsu Watanabe, M.D. is an internal medicine physician with a practice address in Milford, Delaware, and NPI 1821542895, issued on Aug 8, 2016. Check the license (Delaware C1-0013709, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Naomitsu Watanabe
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C1-0013709 DE
Self-reported in NPPES; status is on the state search - Practice location
- 310 Mullet Run, Milford, DE 19963
- Phone
- (302) 424-0600
- Enumerated
- Aug 8, 2016
- Record last updated
- Aug 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20211013003304); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 310 Mullet Run
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Barber, FNP-BCFamily Nurse Practitioner1124424627
- Guy Edmondson, M.D.Family Medicine Physician1871577288
- Loretta Edmondson, M.D.Family Medicine Physician1871577189
- Christina FisherTechnician1689032625
- Wadiya Haynes, MSN, FNP-BC, CNRNFamily Nurse Practitioner1184125684
- Hope Myer, NCMATechnician1770941718
Verify Naomitsu Watanabe 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 C1-0013709Check 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 internal medicine physician in 2024
3,374 Medicare Part D claims for 409 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 85 claims were for opioids.
Most prescribed
- Atorvastatin Calcium273 claims
- Amlodipine Besylate239 claims
- Lisinopril126 claims
- Albuterol Sulfate Hfa105 claims
- Losartan Potassium104 claims
- Hydrochlorothiazide91 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.
Industry payments in 2024: $1,455.67
63 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Edward M Kennedy Community Health Center IncFramingham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Naomitsu Watanabe among 600 internal medicine physician records in Delaware
Naomitsu Watanabe, M.D. is one of 600 internal medicine physician records with a practice address in Delaware. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 64% of them.
- NPI issued2016 · 64% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2006 · median 2008 among the 414 with a school on file
- Record last updated2020 · 49% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
76 internal medicine physician records list a practice address in Milford
They are 76 of the 713 NPPES records with a practice address in Milford, and 600 internal medicine physician records in Delaware.
All 600 in Delaware → Every provider in Milford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ben Hur Aguilar, M.D.Milford, DE 199631740475649
- Joseph Deutsch, M.D.Milford, DE 199631568596039
- Cesar Diaz-Marquez, M.D.Milford, DE 199631699208694
- Martin Golding, M.D.Milford, DE 199631558366633
- Joshua McAfee, M.DMilford, DE 199631972856250
- Adrian Morris, MDMilford, DE 199631447326327
- Robert Rolfes, M.D.Milford, DE 199631306864764
- Muhammad Tahir, MDMilford, DE 199631699146928
Common questions
What is Naomitsu Watanabe, M.D.'s NPI number?
Naomitsu Watanabe, M.D.'s National Provider Identifier (NPI) is 1821542895, issued on Aug 8, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Naomitsu Watanabe, M.D. located?
The NPPES record lists a practice address at 310 Mullet Run, Milford, DE, 19963. Phone: (302) 424-0600. Providers update this record themselves, so call before visiting.
How can I verify Naomitsu Watanabe, M.D.'s license?
NPPES lists Delaware license number C1-0013709, 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 Naomitsu Watanabe, M.D. prescribe under Medicare Part D?
In 2024, Naomitsu Watanabe, M.D. had 3,374 Medicare Part D claims for 409 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.