Sharmini Jayamaha, M.D.
NPI 1912942558 · Nephrology Physician · Riverhead, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sharmini Jayamaha, M.D. is a Nephrology Physician provider in Riverhead, NY (NPI 1912942558).
Provider details
- NPI number
- 1912942558
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 212805 (NY)
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
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
1,655 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 | 845 | $140 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 251 | $126 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 209 | $362 |
| Hemodialysis Procedure With Physician Evaluation90935 | 88 | $74 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 | 87 | $301 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 79 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 29 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 160 | 57 |
| Losartan Potassium | 129 | 51 |
| Hydralazine Hcl | 78 | 29 |
| Empagliflozinbrand: Jardiance | 65 | 20 |
| Lisinopril | 62 | 24 |
| Calcium Acetate | 59 | 24 |
| Chlorthalidone | 52 | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-18
- Last updated
- 2012-11-13
Frequently asked questions
- What is Sharmini Jayamaha's NPI number?
- Sharmini Jayamaha's National Provider Identifier (NPI) is 1912942558, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharmini Jayamaha's specialty?
- Sharmini Jayamaha is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Sharmini Jayamaha located?
- Sharmini Jayamaha's practice location on file with NPPES is 632 Roanoke Avenue, Riverhead, NY 11901.
- What is Sharmini Jayamaha's phone number?
- The practice phone number listed in the NPPES registry for Sharmini Jayamaha is (631) 208-8270.
- Does Sharmini Jayamaha accept Medicare?
- Sharmini Jayamaha is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sharmini Jayamaha's NPI active?
- Yes — Sharmini Jayamaha's NPI (1912942558) is active in the NPPES registry as of the last update on 2012-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.