Quick answers
- Does Calvin Feng accept Medicare assignment?
- Yes. Medicare's clinician data says Calvin Feng 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 Calvin Feng see?
- In 2024, CMS data shows 429 Original Medicare patients and 463 services for Calvin Feng. This counts Original Medicare only and measures volume, not quality.
- What is Calvin Feng's NPI number?
- 1881056737. 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 Calvin Feng, 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 | 429 |
|---|---|
| Services billed to Medicare | 463 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Anesthesia for lens surgery (00142)92 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)89 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)59 services
- Anesthesia for procedure on small and large bowel using an endoscope (00813)26 services
- Anesthesia for exam of colon using an endoscope (00812)23 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%
- Ischemic heart disease31%
- Diabetes29%
- Chronic kidney disease25%
Hospitals where Calvin Feng works
Medicare's Facility Affiliation Data lists Calvin Feng 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.
- Bethesda NorthCincinnati, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360179
- Mercy Health - West HospitalCincinnati, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360234
- Mercy Health Kings Mills Hospital LLCMason, OH · Acute Care Hospital · Emergency services: listed by Medicare · CCN 360374
Practice locations
Addresses where Calvin Feng is enrolled with Medicare (CMS data updated October 2, 2026).
- 10500 Montgomery RdMontgomery, OH 45242 (513) 865‑1111
- 3125 Hamilton Mason RdFairfield Township, OH 45011 (513) 394‑8888
- 3300 Mercy Health BlvdCincinnati, OH 45211 (513) 215‑5000
- 5440 Kings Island DrMason, OH 45040 (513) 637‑9999
Group practices
Medicare enrollment lists Calvin Feng as a member of this group (CMS data updated October 2, 2026).
- Anesthesia Group Practice Inc401 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Montgomery
Clinicians with the same Medicare primary specialty in Montgomery, OH — not a recommendation.
Other clinicians in Anesthesia Group Practice Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Toledo College Of Medicine |
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881056737 |
| 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