Quick answers
- Does Mary Ann Hopkins accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Ann Hopkins 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 Mary Ann Hopkins see?
- In 2024, CMS data shows 388 Original Medicare patients and 595 services for Mary Ann Hopkins. This counts Original Medicare only and measures volume, not quality.
- What is Mary Ann Hopkins's NPI number?
- 1174598056. 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 Mary Ann Hopkins, 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 | 388 |
|---|---|
| Services billed to Medicare | 595 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)207 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)186 services
- Repair of groin hernia using an endoscope (49650)81 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)36 services
- Insertion of needle into vein for collection of blood sample (36415)12 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 cholesterol75%
- High blood pressure65%
- Arthritis49%
- Ischemic heart disease38%
- Diabetes28%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)19%
Hospitals where Mary Ann Hopkins works
Medicare's Facility Affiliation Data lists Mary Ann Hopkins 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.
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330214
Practice locations
Addresses where Mary Ann Hopkins is enrolled with Medicare (CMS data updated October 2, 2026).
- 111 BroadwayNew York, NY 10006 (212) 263‑9700
- 530 1st AveNew York, NY 10016 (212) 263‑7300
- 550 1st AveNew York, NY 10016 (212) 263‑7300
- 560 1st AveNew York, NY 10016 (212) 263‑7300
Group practices
Medicare enrollment lists Mary Ann Hopkins as a member of this group (CMS data updated October 2, 2026).
- New York University6,134 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Other clinicians in New York University
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174598056 |
| 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