Mary C. Mallappallil, MD
Nephrology Physician · Port Washington, NY
Mary C. Mallappallil, MD is a nephrology physician with a practice address in Port Washington, New York, and NPI 1578586392, issued on Jul 25, 2006. Check the license (New York 215103-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mary C. Mallappallil
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 215103-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 50 Seaview Blvd, Port Washington, NY 11050
- Phone
- (516) 484-6093
- Enumerated
- Jul 25, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (516) 484-6180
- Medicare enrollment
- Enrolled (PECOS I20060906000127); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1997
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,049 in New York → Look up another NPI →
Also registered at 50 Seaview Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Teresa Alfano, NP-CAdult Health Nurse Practitioner1942490669
- Joel Blush, M.D.Nephrology Physician1265403653
- Helen Jin, M.D.Nephrology Physician1306818554
- Jasmeet Kaur, MDNephrology Physician1730383928
- Lionel Mailloux, MDNephrology Physician1538130992
Verify Mary C. Mallappallil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 215103-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average nephrology physician in 2024
66 Medicare Part D claims for 28 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Calcitriol15 claims
- Jardiance11 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.
The MIPS final score for 2023 (Medicare payment program): 93.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $76.57
3 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- University Physicians OF Brooklyn, Inc.Brooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary C. Mallappallil among 1,049 nephrology physician records in New York
Mary C. Mallappallil, MD is one of 1,049 nephrology physician records with a practice address in New York. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 47% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1997 · median 1999 among the 764 with a school on file
- Record last updated2007 · 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 207RN0300X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 nephrology physician records list a practice address in Port Washington
They are 6 of the 444 NPPES records with a practice address in Port Washington, and 1,049 nephrology physician records in New York.
All 1,049 in New York → Every provider in Port Washington → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Joel Blush, M.D.Port Washington, NY 110501265403653
- Howard Furst, MDPort Washington, NY 110501669709614
- Helen Jin, M.D.Port Washington, NY 110501306818554
- Jasmeet Kaur, MDPort Washington, NY 110501730383928
- Lionel Mailloux, MDPort Washington, NY 110501538130992
- Adam Criss, DONew Hyde Park, NY 110421386742039
- Jeffrey Haller, MDNew Hyde Park, NY 110421144328899
- Jim Hilepo, MDLake Success, NY 110421679671317
Common questions
What is Mary C. Mallappallil, MD's NPI number?
Mary C. Mallappallil, MD's National Provider Identifier (NPI) is 1578586392, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary C. Mallappallil, MD located?
The NPPES record lists a practice address at 50 Seaview Blvd, Port Washington, NY, 11050. Phone: (516) 484-6093. Providers update this record themselves, so call before visiting.
How can I verify Mary C. Mallappallil, MD's license?
NPPES lists New York license number 215103-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary C. Mallappallil, MD prescribe under Medicare Part D?
In 2024, Mary C. Mallappallil, MD had 66 Medicare Part D claims for 28 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Mary C. Mallappallil, MD's MIPS final score?
The 2023 MIPS final score is 93.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.