Quick answers
- Does Heather I. Frimmer accept Medicare assignment?
- Yes. Medicare's clinician data says Heather I. Frimmer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Heather I. Frimmer see?
- In 2024, CMS data shows 1,208 Original Medicare patients and 7,316 services for Heather I. Frimmer. This counts Original Medicare only and measures volume, not quality.
- What is Heather I. Frimmer's NPI number?
- 1003897687. 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 Heather I. Frimmer, 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 | 1,208 |
|---|---|
| Services billed to Medicare | 7,316 |
| Different services or procedures | 93 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, gadobutrol, 0.1 ml (A9585)2,315 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,286 services
- Screening mammography (77067)802 services
- Screening 3d breast mammography (77063)795 services
- Complete ultrasound scan of 1 breast (76641)374 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 blood pressure75%
- High cholesterol75%
- Arthritis50%
- Diabetes44%
- Osteoporosis27%
- Ischemic heart disease26%
Hospitals where Heather I. Frimmer works
Medicare's Facility Affiliation Data lists Heather I. Frimmer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- New York-Presbyterian/QueensFlushing, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330055
- Valley HospitalParamus, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310012
Practice locations
Addresses where Heather I. Frimmer is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.
- 10837 71st Ave, Suite 2Forest Hills, NY 11375 (631) 751‑3000
- 11 Whitewood Hollow CtRidgefield, CT 06877 (718) 428‑1500
- 1500 Route 112, Bldg 2Port Jefferson Station, NY 11776 (631) 751‑3000
- 21 Ivy CloseForest Hills, NY 11375 (718) 670‑1050
- 27 Old Easton TpkeWeston, CT 06883 (201) 447‑8000
Group practices
Medicare enrollment lists Heather I. Frimmer as a member of these groups (CMS data updated October 2, 2026).
- Valley Physician Services PC592 clinicians in the group
- North Shore Hematology Oncology Associates PC479 clinicians in the group
- Main Street Radiology at Bayside LLC56 clinicians in the group
- Radiology Associates of Main Street PC52 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Forest Hills
Clinicians with the same Medicare primary specialty in Forest Hills, NY — not a recommendation.
Other clinicians in Valley Physician Services PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003897687 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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