Nina Tolkoff-Rubin, MD
NPI 1376524165 · Nephrology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nina Tolkoff-Rubin, MD is a Nephrology Physician provider in Boston, MA (NPI 1376524165).
Provider details
- NPI number
- 1376524165
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 32025 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
230 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $99 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 80 | $136 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 16 | $99 |
Typical Medicare-allowed amounts for these services range $99–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 168 | 32 |
| Tacrolimus | 100 | 17 |
| Amlodipine Besylate | 55 | 16 |
| Mycophenolate Mofetil | 55 | 14 |
| Furosemide | 43 | 13 |
| Empagliflozinbrand: Jardiance | 38 | — |
| Pravastatin Sodium | 33 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-08
- Last updated
- 2012-07-19
Frequently asked questions
- What is Nina Tolkoff-Rubin's NPI number?
- Nina Tolkoff-Rubin's National Provider Identifier (NPI) is 1376524165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nina Tolkoff-Rubin's specialty?
- Nina Tolkoff-Rubin is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Nina Tolkoff-Rubin located?
- Nina Tolkoff-Rubin's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Nina Tolkoff-Rubin's phone number?
- The practice phone number listed in the NPPES registry for Nina Tolkoff-Rubin is (617) 726-3706.
- Does Nina Tolkoff-Rubin accept Medicare?
- Nina Tolkoff-Rubin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nina Tolkoff-Rubin's NPI active?
- Yes — Nina Tolkoff-Rubin's NPI (1376524165) is active in the NPPES registry as of the last update on 2012-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.