Quick answers
- Does Valliammai Muthappan accept Medicare assignment?
- Yes. Medicare's clinician data says Valliammai Muthappan 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 Valliammai Muthappan see?
- In 2024, CMS data shows 161 Original Medicare patients and 463 services for Valliammai Muthappan. This counts Original Medicare only and measures volume, not quality.
- What is Valliammai Muthappan's NPI number?
- 1427370675. 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 Valliammai Muthappan, 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 | 161 |
|---|---|
| Services billed to Medicare | 463 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Measurement of corneal curvature and depth of eye (92136)121 services
- Removal of cataract with insertion of prosthetic lens (66984)116 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)84 services
- Removal of recurring cataract in lens capsule using a laser (66821)54 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)44 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%
- Arthritis43%
- Diabetes25%
- Anxiety24%
- Ischemic heart disease22%
Hospitals where Valliammai Muthappan works
Medicare's Facility Affiliation Data lists Valliammai Muthappan 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.
- UPMC St MargaretPittsburgh, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390102
Practice locations
Addresses where Valliammai Muthappan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1225 S Main St, Suite 403Greensburg, PA 15601 (724) 617‑2020
- 4448 Old William Penn Hwy, Suite 100Murrysville, PA 15668 (724) 617‑2020
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Greensburg
Clinicians with the same Medicare primary specialty in Greensburg, PA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427370675 |
| 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