NPPES file of Aug 9, 2026

Mariah Magargee Pieretti, M.D.

Allergy & Immunology Physician · Ithaca, NY

Mariah Magargee Pieretti, M.D. is an allergy & immunology physician with a practice address in Ithaca, New York, and NPI 1356355275, issued on Jul 28, 2006. Check the license (New York 233261, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356355275
Name
Mariah Magargee Pieretti
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License number
233261 NY
Self-reported in NPPES; status is on the state search
Practice location
904 E Shore Dr, Ithaca, NY 14850
Phone
(917) 669-4198
Enumerated
Jul 28, 2006
Record last updated
Jun 1, 2026
Medicaid ID
02798121 NY
Medicare enrollment
Enrolled (PECOS I20060908000324); accepts Medicare assignment
Medical or professional school
Temple University School Of Medicine, 2002
Telehealth
Offers telehealth (CMS)
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 904 E Shore Dr

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

  1. Shion Donahue, PA-CMedical Physician Assistant1740675586
  2. Eric Jorgensen, MDAllergy & Immunology Physician1093371429
  3. Rizwan Khan, M.D.Allergy & Immunology Physician1700864881
  4. Julie McNairn, MDAllergy Physician1982671442
  5. Justin Weilert, NPFamily Nurse Practitioner1922625383

Verify Mariah Magargee Pieretti in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 233261
    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 New York license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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20% fewer Medicare Part D claims than the average allergy & immunology physician in 2024

593 Medicare Part D claims for 149 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.

  1. Mariah Pieretti593
  2. Specialty average741

Most prescribed

  1. Montelukast Sodium51 claims
  2. Albuterol Sulfate Hfa49 claims
  3. Levocetirizine Dihydrochloride44 claims
  4. Ipratropium Bromide41 claims
  5. Epinephrine35 claims
  6. Trelegy Ellipta32 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): 95.2 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.

  1. Qualityout of 100 · 30% of the final score84.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $791.75

37 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mariah Pieretti$791.75
  2. Specialty average$8,321.81

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

  1. Asthma And Allergy Associates PCVestal, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mariah Magargee Pieretti among 311 allergy & immunology physician records in New York

Mariah Magargee Pieretti, M.D. is one of 311 allergy & immunology physician records with a practice address in New York. 84% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 49% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2002 · median 2000 among the 211 with a school on file
  • Record last updated2026 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in New York

There are 311 allergy & immunology physician records in New York.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Joseph Flanagan, M.D.Ithaca, NY 148501477527828
  2. Eric Jorgensen, MDIthaca, NY 148501093371429
  3. Rizwan Khan, M.D.Ithaca, NY 148501700864881
  4. Mehek Mehta, MDCorning, NY 148301558859074
  5. Fred Lewis, MDOlean, NY 147601093714230
  6. Sara Patrawala, M.D.Rochester, NY 146421821373705
  7. Jennifer Pier, M.D.Rochester, NY 146421356720734
  8. Katherine Tuttle, MDRochester, NY 146421053758201

Common questions

What is Mariah Magargee Pieretti, M.D.'s NPI number?

Mariah Magargee Pieretti, M.D.'s National Provider Identifier (NPI) is 1356355275, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mariah Magargee Pieretti, M.D. located?

The NPPES record lists a practice address at 904 E Shore Dr, Ithaca, NY, 14850. Phone: (917) 669-4198. Providers update this record themselves, so call before visiting.

How can I verify Mariah Magargee Pieretti, M.D.'s license?

NPPES lists New York license number 233261, 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 Mariah Magargee Pieretti, M.D. prescribe under Medicare Part D?

In 2024, Mariah Magargee Pieretti, M.D. had 593 Medicare Part D claims for 149 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.

What is Mariah Magargee Pieretti, M.D.'s MIPS final score?

The 2023 MIPS final score is 95.2 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.