Nina Tolkoff-Rubin, MD
Nephrology Physician · Boston, MA
Nina Tolkoff-Rubin, MD is a nephrology physician with a practice address in Boston, Massachusetts, and NPI 1376524165, issued on Nov 8, 2005. Check the license (Massachusetts 32025, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Nina Tolkoff-Rubin
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 32025 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (617) 726-3706
- Enumerated
- Nov 8, 2005
- Record last updated
- Jul 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (617) 726-2288
- Medicaid ID
- 2075121 MA
- Medicare enrollment
- Enrolled (PECOS I20050715000677); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1968
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 417 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nina Tolkoff-Rubin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 32025Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average nephrology physician in 2024
1,133 Medicare Part D claims for 86 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone168 claims
- Tacrolimus100 claims
- Amlodipine Besylate55 claims
- Mycophenolate Mofetil55 claims
- Furosemide43 claims
- Jardiance38 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 2 group practices
- Massachusetts General Physicians Organization IncBoston, MA
- The General Hospital CorporationBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nina Tolkoff-Rubin among 417 nephrology physician records in Massachusetts
Nina Tolkoff-Rubin, MD is one of 417 nephrology physician records with a practice address in Massachusetts. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1968 · median 2001 among the 295 with a school on file
- Record last updated2012 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Massachusetts
There are 417 nephrology physician records in Massachusetts.
All 417 in Massachusetts → Every provider in Boston → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Dennis Ausiello, MDBoston, MA 021141316938962
- Hasan Bazari, MDBoston, MA 021141811978091
- Ishir Bhan, MDBoston, MA 021141275519993
- Louis Ercolani, M.D.Boston, MA 021141164407516
- Leslie Fang, MDBoston, MA 021141558351734
- Garner Haupert, MDBoston, MA 021141073503348
- Herbert Lin, MD PHDBoston, MA 021141245211960
- Sagar Nigwekar, MDBoston, MA 021141710939848
Common questions
What is Nina Tolkoff-Rubin, MD's NPI number?
Nina Tolkoff-Rubin, MD's National Provider Identifier (NPI) is 1376524165, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Nina Tolkoff-Rubin, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (617) 726-3706. Providers update this record themselves, so call before visiting.
How can I verify Nina Tolkoff-Rubin, MD's license?
NPPES lists Massachusetts license number 32025, 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 Nina Tolkoff-Rubin, MD prescribe under Medicare Part D?
In 2024, Nina Tolkoff-Rubin, MD had 1,133 Medicare Part D claims for 86 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.