David Klein
Internal Medicine Physician · Needham, MA
David Klein is an internal medicine physician with a practice address in Needham, Massachusetts, and NPI 1174188908, issued on May 7, 2019. Check the license (Massachusetts 1023451, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- David Klein
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1023451 MA
Self-reported in NPPES; status is on the state search - Practice location
- 148 Chestnut St, Needham, MA 02492
- Phone
- (617) 632-9755
- Enumerated
- May 7, 2019
- Record last updated
- Jul 1, 2025
- Medicare enrollment
- Enrolled (PECOS I20250709000042); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 148 Chestnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lopamudra Acharya, MDHospitalist Physician1144513763
- Bilal Ansari, MDHospitalist Physician1831741024
- Massuda Atta, MDInternal Medicine Physician1528298619
- Stuart BlessInternal Medicine Physician1740350826
- Maria Cronin, PACPhysician Assistant1184696395
- Isabella D'Ambra, RDRegistered Dietitian1063226504
Verify David Klein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1023451Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
424 Medicare Part D claims for 75 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium48 claims
- Amlodipine Besylate33 claims
- Lisinopril29 claims
- Albuterol Sulfate Hfa20 claims
- Gabapentin15 claims
- Nifedipine Er15 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
- Associated Physicians OF Harvard Medical Faculty Physicians AT Beth ISNeedham, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Klein among 6,825 internal medicine physician records in Massachusetts
David Klein 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 2019, is newer than 84% of them.
- NPI issued2019 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2004 among the 4,103 with a school on file
- Record last updated2025 · 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).
34 internal medicine physician records list a practice address in Needham
They are 34 of the 1,223 NPPES records with a practice address in Needham, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Needham → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jacqueline Feuer, MDNeedham, MA 024921093705626
- Elizabeth Handel, M.D.Needham, MA 024921760579478
- Renee Jacobs, M.D.Needham, MA 024921396784484
- Eli Kramer, M.D.Needham, MA 024921396859914
- Diane London, M.D.Needham, MA 024921629017710
- Mary Manning, M.D., M.P.H.Needham, MA 024921225067838
- Sandra Lee Marwill, M.D.Needham, MA 024921003874637
- Sally McNagny, M.D.Needham, MA 024921205874583
Common questions
What is David Klein's NPI number?
David Klein's National Provider Identifier (NPI) is 1174188908, issued on May 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is David Klein located?
The NPPES record lists a practice address at 148 Chestnut St, Needham, MA, 02492. Phone: (617) 632-9755. Providers update this record themselves, so call before visiting.
How can I verify David Klein's license?
NPPES lists Massachusetts license number 1023451, 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 David Klein prescribe under Medicare Part D?
In 2024, David Klein had 424 Medicare Part D claims for 75 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.