Rachel Ellen Poritsky Anderson
Internal Medicine Physician · Boston, MA
Rachel Ellen Poritsky Anderson is an internal medicine physician with a practice address in Boston, Massachusetts, and NPI 1316643448, issued on Jan 31, 2023. Check the license (Massachusetts 1025535, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Rachel Ellen Poritsky Anderson
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1025535 MA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Massachusetts Avenue, Boston, MA 02118
- Phone
- (617) 414-7399
- Enumerated
- Jan 31, 2023
- Record last updated
- Apr 10, 2026
- Fax
- (617) 414-4676
- Entity
- Type 1 · individual
Also registered at 801 Massachusetts Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rachel Ellen Poritsky Anderson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1025535Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
139 Medicare Part D claims for 38 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Eliquis14 claims
- Atorvastatin Calcium13 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.
2,320 internal medicine physician records list a practice address in Boston
They are 2,320 of the 41,865 NPPES records with a practice address in Boston, and 6,825 internal medicine physician records in Massachusetts.
All 2,320 in Boston → All 6,825 in Massachusetts → Every provider in Boston →
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- Bassima Abdallah, MDBoston, MA1912327305
- Maya Abdallah, MDBoston, MA1861854937
- Samah Abdallah, MDBrighton, MA1730814971
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- Mohab AbdelhalimBoston, MA1871388496
Common questions
What is Rachel Ellen Poritsky Anderson's NPI number?
Rachel Ellen Poritsky Anderson's National Provider Identifier (NPI) is 1316643448, issued on Jan 31, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Rachel Ellen Poritsky Anderson located?
The NPPES record lists a practice address at 801 Massachusetts Avenue, Boston, MA, 02118. Phone: (617) 414-7399. Providers update this record themselves, so call before visiting.
How can I verify Rachel Ellen Poritsky Anderson's license?
NPPES lists Massachusetts license number 1025535, 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 Rachel Ellen Poritsky Anderson prescribe under Medicare Part D?
In 2024, Rachel Ellen Poritsky Anderson had 139 Medicare Part D claims for 38 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.