Amuthavalli Ath Merc John Sundarraj, FNP
NPI 1396401071 · Family Nurse Practitioner · Los Gatos, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amuthavalli Ath Merc John Sundarraj, FNP is a Family Nurse Practitioner provider in Los Gatos, CA (NPI 1396401071).
Provider details
- NPI number
- 1396401071
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- NP95019082 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
4 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
183 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 | 109 | $132 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 39 | $170 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $94 |
Typical Medicare-allowed amounts for these services range $94–$170 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 25 | 13 |
| Losartan Potassium | 25 | 11 |
| Amlodipine Besylate | 22 | 16 |
| Metoprolol Succinate | 19 | — |
| Atorvastatin Calcium | 16 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 14 | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-11-16
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Amuthavalli Ath Merc John Sundarraj's NPI number?
- Amuthavalli Ath Merc John Sundarraj's National Provider Identifier (NPI) is 1396401071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amuthavalli Ath Merc John Sundarraj's specialty?
- Amuthavalli Ath Merc John Sundarraj is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Amuthavalli Ath Merc John Sundarraj located?
- Amuthavalli Ath Merc John Sundarraj's practice location on file with NPPES is 15400 Los Gatos Blvd, Los Gatos, CA 95032-2502.
- What is Amuthavalli Ath Merc John Sundarraj's phone number?
- The practice phone number listed in the NPPES registry for Amuthavalli Ath Merc John Sundarraj is (408) 523-3102.
- Does Amuthavalli Ath Merc John Sundarraj accept Medicare?
- Amuthavalli Ath Merc John Sundarraj is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amuthavalli Ath Merc John Sundarraj's NPI active?
- Yes — Amuthavalli Ath Merc John Sundarraj's NPI (1396401071) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.