Daniel Scott Simpson, MD
Internal Medicine Physician · Brookline, MA
Daniel Scott Simpson, MD is an internal medicine physician with a practice address in Brookline, Massachusetts, and NPI 1043277643, issued on Apr 27, 2006. Check the license (Massachusetts 57155, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Daniel Scott Simpson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 57155 MA
Self-reported in NPPES; status is on the state search - Practice location
- 1 Brookline PL Ste 225, Brookline, MA 02445
- Phone
- (857) 307-4400
- Enumerated
- Apr 27, 2006
- Record last updated
- Sep 19, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 3087875 MA
- Medicare enrollment
- Enrolled (PECOS I20071031000142); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 1 Brookline PL Ste 225
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel Perl, M.D.Family Medicine Physician1578826467
- Rattna Phull, MDInternal Medicine Physician1629035928
- Elizabeth Rourke, M.D.Internal Medicine Physician1386625739
- Theresa ShanahanPrimary Care Nurse Practitioner1598598690
Verify Daniel Scott Simpson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 57155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,885 Medicare Part D claims for 291 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 126 claims were for opioids.
Most prescribed
- Atorvastatin Calcium259 claims
- Amlodipine Besylate196 claims
- Lisinopril108 claims
- Omeprazole86 claims
- Metoprolol Succinate78 claims
- Levothyroxine Sodium73 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
- Brigham And Womens Physicians Organization IncBrookline, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Scott Simpson among 6,825 internal medicine physician records in Massachusetts
Daniel Scott Simpson, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% 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 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1984 · median 2004 among the 4,103 with a school on file
- Record last updated2019 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 internal medicine physician records list a practice address in Brookline
They are 57 of the 2,357 NPPES records with a practice address in Brookline, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Brookline → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rebecca Ashkenazy, M.D.Brookline, MA 024451619934403
- Ali Bahadori, MDBrookline, MA 024451376592584
- David Mark Davidson, M.D.Brookline, MA 024451457399677
- Kurt Fabrick, M.D., M.P.H.Brookline, MA 024451538113477
- Ronald Katz, M.D.Brookline, MA 024451508834011
- Christine Keegan, MDBrookline, MA 024451952364143
- Robin Mayfield, M.D.Brookline, MA 024451225098924
- Rattna Phull, MDBrookline, MA 024451629035928
Common questions
What is Daniel Scott Simpson, MD's NPI number?
Daniel Scott Simpson, MD's National Provider Identifier (NPI) is 1043277643, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Scott Simpson, MD located?
The NPPES record lists a practice address at 1 Brookline PL Ste 225, Brookline, MA, 02445. Phone: (857) 307-4400. Providers update this record themselves, so call before visiting.
How can I verify Daniel Scott Simpson, MD's license?
NPPES lists Massachusetts license number 57155, 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 Scott Simpson, MD prescribe under Medicare Part D?
In 2024, Daniel Scott Simpson, MD had 2,885 Medicare Part D claims for 291 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.