Daniel J. Oates, M.D.
Geriatric Medicine (Internal Medicine) Physician · Boston, MA
Daniel J. Oates, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Boston, Massachusetts, and NPI 1871551531, issued on May 3, 2006. Check the license (Massachusetts 215230, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Daniel J. Oates
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 215230 MA
Self-reported in NPPES; status is on the state search - Practice location
- 72 E Concord Street, Boston, MA 02118
- Phone
- (617) 638-6100
- Enumerated
- May 3, 2006
- Record last updated
- Nov 1, 2023
- Fax
- (617) 638-6179
- Medicaid ID
- 0199397 MA
- Medicare enrollment
- Enrolled (PECOS I20050621000446); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 225 in Massachusetts → Look up another NPI →
Also registered at 72 E Concord Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Concilio, NPGerontology Nurse Practitioner1235237173
- Vanny McLean, NPGerontology Nurse Practitioner1952865735
Verify Daniel J. Oates in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 215230Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
945 Medicare Part D claims for 189 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium72 claims
- Gabapentin46 claims
- Metoprolol Succinate40 claims
- Amlodipine Besylate37 claims
- Sertraline Hcl32 claims
- Lisinopril31 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
- Evans Medical Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel J. Oates among 225 geriatric medicine (internal medicine) physician records in Massachusetts
Daniel J. Oates, M.D. is one of 225 geriatric medicine (internal medicine) physician records with a practice address in Massachusetts. 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 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 44% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2000 · median 2000 among the 119 with a school on file
- Record last updated2023 · 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 207RG0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Massachusetts
There are 225 geriatric medicine (internal medicine) physician records in Massachusetts.
All 225 in Massachusetts → Every provider in Boston → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Heidi Auerbach, M.D.Boston, MA 021181306829833
- Erica Bernstein, M.D., PHDBoston, MA 021181083686000
- Lisa Caruso, M.D.Boston, MA 021181316922099
- Hollis Day, MDShapiro 9 Suite A, MA 021181902878465
- Eric Hardt, M.D.Boston, MA 021181902882947
- Ellen Harrington Harrington, LICSWBoston, MA 021181851420327
- Won Lee, M.D.Boston, MA 021181124218227
- Sharon Levine, M.D.Boston, MA 021181821075540
Common questions
What is Daniel J. Oates, M.D.'s NPI number?
Daniel J. Oates, M.D.'s National Provider Identifier (NPI) is 1871551531, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel J. Oates, M.D. located?
The NPPES record lists a practice address at 72 E Concord Street, Boston, MA, 02118. Phone: (617) 638-6100. Providers update this record themselves, so call before visiting.
How can I verify Daniel J. Oates, M.D.'s license?
NPPES lists Massachusetts license number 215230, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Daniel J. Oates, M.D. prescribe under Medicare Part D?
In 2024, Daniel J. Oates, M.D. had 945 Medicare Part D claims for 189 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.