Jamie Mersten, M.D.
NPI 1497160790 · Internal Medicine Physician · East Setauket, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jamie Mersten, M.D. is a Internal Medicine Physician provider in East Setauket, NY (NPI 1497160790).
Provider details
- NPI number
- 1497160790
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 289357 (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
11 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
197 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 | 132 | $151 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 41 | $107 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 13 | $17 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 11 | $196 |
Typical Medicare-allowed amounts for these services range $17–$196 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-25
- Last updated
- 2022-05-03
- Certified
- 2022-05-03
Frequently asked questions
- What is Jamie Mersten's NPI number?
- Jamie Mersten's National Provider Identifier (NPI) is 1497160790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jamie Mersten's specialty?
- Jamie Mersten is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jamie Mersten located?
- Jamie Mersten's practice location on file with NPPES is 205 Belle Meade Road, East Setauket, NY 11733-2401.
- What is Jamie Mersten's phone number?
- The practice phone number listed in the NPPES registry for Jamie Mersten is (631) 444-4630.
- Does Jamie Mersten accept Medicare?
- Jamie Mersten is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jamie Mersten's NPI active?
- Yes — Jamie Mersten's NPI (1497160790) is active in the NPPES registry as of the last update on 2022-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.