Quick answers
- Does Keri L. Peterson accept Medicare assignment?
- Medicare's clinician data says Keri L. Peterson may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Keri L. Peterson see?
- In 2024, CMS data shows 69 Original Medicare patients and 377 services for Keri L. Peterson. This counts Original Medicare only and measures volume, not quality.
- What is Keri L. Peterson's NPI number?
- 1336119866. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Keri L. Peterson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 69 |
|---|---|
| Services billed to Medicare | 377 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)75 services
- Insertion of needle into vein for collection of blood sample (36415)67 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)51 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)48 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)48 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol65%
- High blood pressure55%
- Arthritis39%
- Ischemic heart disease20%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)16%
Practice locations
Addresses where Keri L. Peterson is enrolled with Medicare (CMS data updated October 2, 2026).
- 150 E 58th St, 4th Floor AnnexNew York, NY 10155
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1336119866 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians