NPPES file of Aug 9, 2026

Mariya H. Apostolova, MD

Hematology & Oncology Physician · Butler, PA

Mariya H. Apostolova, MD is a hematology & oncology physician with a practice address in Butler, Pennsylvania, and NPI 1649408477, issued on Jul 1, 2009. Check the license (Pennsylvania MD450431, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649408477
Name
Mariya H. Apostolova
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
MD450431 PA
Self-reported in NPPES; status is on the state search
Practice location
160 Hollywood Dr FL 2, Butler, PA 16001
Phone
(724) 282-6175
Enumerated
Jul 1, 2009
Record last updated
Oct 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20240304001821); accepts Medicare assignment
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 160 Hollywood Dr FL 2

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

  1. Andreal Gray, PAPhysician Assistant1770866238
  2. Bushra Haq, MDHematology & Oncology Physician1780827857
  3. Allen Jones, CRNPNurse Practitioner1184626566
  4. Neeta Pathe, MDHematology & Oncology Physician1922384049
  5. Sigurdur Petursson, MDHematology & Oncology Physician1467454983

Verify Mariya H. Apostolova 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 MD450431
    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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About as many Medicare Part D claims as the average hematology & oncology physician in 2024

875 Medicare Part D claims for 297 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 43 claims were for opioids.

  1. Mariya Apostolova875
  2. Specialty average877

Most prescribed

  1. Anastrozole93 claims
  2. Prednisone43 claims
  3. Acyclovir41 claims
  4. Dexamethasone36 claims
  5. Letrozole34 claims
  6. Ondansetron Hcl32 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 practice group's MIPS final score for 2023 (Medicare payment program): 85.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score86.6
  2. Costout of 100 · 30%56.9
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $195.14

8 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mariya Apostolova$195.14
  2. Specialty average$7,481.41

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

2 hospital affiliations

  1. Cleveland ClinicAkron, OH · Acute Care Hospitals4 of 5 stars
  2. Reynolds Memorial Hospital, IncGlen Dale, WV · Acute Care Hospitals2 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Hematology & Oncology Physician providers in Pennsylvania

There are 784 hematology & oncology physician records in Pennsylvania.

Other hematology & oncology physician records in Pennsylvania

  1. Erin Aakhus, M.D.Philadelphia, PA1255652087
  2. Abdullateef Abdulkareem, M.D.Lancaster, PA1386027068
  3. Charles Abrams, MDPhiladelphia, PA1184668071
  4. Tala AchkarPittsburgh, PA1104268242
  5. Monica Adedeji, MD, MPHHershey, PA1487146999
  6. Janak Adhikari, MDHershey, PA1588185847
  7. Giridhar Adiga, MDEphrata, PA1356374417
  8. Christian Adonizio, MDDanville, PA1932198629
  9. Parul Agarwal, MDPhiladelphia, PA1336534809
  10. Charu Aggarwal, MD, MPHPhiladelphia, PA1114181740

Common questions

What is Mariya H. Apostolova, MD's NPI number?

Mariya H. Apostolova, MD's National Provider Identifier (NPI) is 1649408477, issued on Jul 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Mariya H. Apostolova, MD located?

The NPPES record lists a practice address at 160 Hollywood Dr FL 2, Butler, PA, 16001. Phone: (724) 282-6175. Providers update this record themselves, so call before visiting.

How can I verify Mariya H. Apostolova, MD's license?

NPPES lists Pennsylvania license number MD450431, 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 Mariya H. Apostolova, MD prescribe under Medicare Part D?

In 2024, Mariya H. Apostolova, MD had 875 Medicare Part D claims for 297 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Mariya H. Apostolova, MD's MIPS final score?

The 2023 MIPS final score is 85.6 of 100, reported for the practice group. 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.