NPPES file of Aug 9, 2026

Valliammai Muthappan, MD.

Ophthalmology Physician · Murrysville, PA

Valliammai Muthappan, MD. is an ophthalmology physician with a practice address in Murrysville, Pennsylvania, and NPI 1427370675, issued on Feb 15, 2010. Check the license (Pennsylvania MD443772, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427370675
Name
Valliammai Muthappan
Credential
MD.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
MD443772 PA
Self-reported in NPPES; status is on the state search
Practice location
4750 Old William Penn Hwy, Murrysville, PA 15668
Phone
(724) 617-2020
Enumerated
Feb 15, 2010
Record last updated
Nov 29, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(724) 453-4108
Medicare enrollment
Enrolled (PECOS I20140723000171); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4750 Old William Penn Hwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Newell, D.M.D.Orthodontics and Dentofacial Orthopedics Dentistry1043355316

Verify Valliammai Muthappan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD443772
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

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67% fewer Medicare Part D claims than the average ophthalmology physician in 2024

499 Medicare Part D claims for 162 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.

  1. Valliammai Muthappan499
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate159 claims
  2. Ketorolac Tromethamine97 claims
  3. Ofloxacin96 claims
  4. Valacyclovir20 claims
  5. Fluorometholone19 claims
  6. Amlodipine Besylate12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $15.70

1 payment: food and beverage; the largest payer was Sight Sciences, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Valliammai Muthappan$15.70
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Valliammai Muthappan among 1,088 ophthalmology physician records in Pennsylvania

Valliammai Muthappan, MD. is one of 1,088 ophthalmology physician records with a practice address in Pennsylvania. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 72% of them.

  • NPI issued2010 · 72% of these records are older, 26% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2009 · median 2000 among the 734 with a school on file
  • Record last updated2017 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Pennsylvania

There are 1,088 ophthalmology physician records in Pennsylvania.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Patrick Lally, MDLatrobe, PA 156501447253331
  2. Michael Vittone, MDLatrobe, PA 156501104879238
  3. Ronald Vittone, MDLatrobe, PA 156501316918477
  4. Miroya Monsour, M.D.Jeannette, PA 156441639132939
  5. Thomas TrevorrowIndiana, PA 157011427040567
  6. Rinku Dutt, MDGreensburg, PA 156011841277555
  7. H Hartman, MDGreensburg, PA 156011063592723
  8. Lea Ann Lope, D.O.Greensburg, PA 156011265603849

Common questions

What is Valliammai Muthappan, MD.'s NPI number?

Valliammai Muthappan, MD.'s National Provider Identifier (NPI) is 1427370675, issued on Feb 15, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Valliammai Muthappan, MD. located?

The NPPES record lists a practice address at 4750 Old William Penn Hwy, Murrysville, PA, 15668. Phone: (724) 617-2020. Providers update this record themselves, so call before visiting.

How can I verify Valliammai Muthappan, MD.'s license?

NPPES lists Pennsylvania license number MD443772, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Valliammai Muthappan, MD. prescribe under Medicare Part D?

In 2024, Valliammai Muthappan, MD. had 499 Medicare Part D claims for 162 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.