Nisha Hariharan, MD
NPI 1679004543 · Hematology & Oncology Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nisha Hariharan, MD is a Hematology & Oncology Physician provider in Berkeley, CA (NPI 1679004543).
Provider details
- NPI number
- 1679004543
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A157468 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 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
1,529 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) |
|---|---|---|
| Prolonged Office Or Other Outpatient Evaluation and Management Service(s) Beyond the Maximum Required Time of the Primary Procedure Which Has Been Selected Using Total Time on the Date of the Primary Service; Each Additional 15 Minutes By the Physician OrG2212 | 250 | $37 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 229 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 186 | $213 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 178 | $19 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Apixabanbrand: Eliquis | 17 |
| Lenalidomidebrand: Revlimid | 16 |
| Hydroxyurea | 14 |
| Pantoprazole Sodium | 14 |
| Eltrombopag Olaminebrand: Promacta | 13 |
| Zanubrutinibbrand: Brukinsa | 11 |
| Ruxolitinib Phosphatebrand: Jakafi | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-03-23
- Last updated
- 2024-01-30
- Certified
- 2024-01-30
Frequently asked questions
- What is Nisha Hariharan's NPI number?
- Nisha Hariharan's National Provider Identifier (NPI) is 1679004543, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nisha Hariharan's specialty?
- Nisha Hariharan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nisha Hariharan located?
- Nisha Hariharan's practice location on file with NPPES is 3100 San Pablo Ave Ste 280, Berkeley, CA 94702-2498.
- What is Nisha Hariharan's phone number?
- The practice phone number listed in the NPPES registry for Nisha Hariharan is (510) 420-8000.
- Does Nisha Hariharan accept Medicare?
- Nisha Hariharan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nisha Hariharan's NPI active?
- Yes — Nisha Hariharan's NPI (1679004543) is active in the NPPES registry as of the last update on 2024-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.