NPPES file of Aug 9, 2026

Anusiyanthan Mariampillai, M.D

Hematology & Oncology Physician · Anchorage, AK

Anusiyanthan Mariampillai, M.D is a hematology & oncology physician with a practice address in Anchorage, Alaska, and NPI 1518221977, issued on Jul 1, 2012. Check the license (Alaska 118827, as entered in NPPES) on the Alaska State Medical Board; 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
1518221977
Name
Anusiyanthan Mariampillai
Credential
M.D
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
118827 AK
Self-reported in NPPES; status is on the state search
Practice location
4315 Diplomacy Dr, Anchorage, AK 99508
Phone
(907) 729-1180
Enumerated
Jul 1, 2012
Record last updated
Jul 12, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170804002503); 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 4315 Diplomacy Dr

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

  1. Allyssa Abel, MDEmergency Medicine Physician1235715251
  2. James Akers, PTPhysical Therapist1063559847
  3. Katherine Alexander, PA-CPhysician Assistant1770201329
  4. Mary Anderson, M.D.Pediatrics Physician1912385840
  5. Staci AndrewsCase Manager/Care Coordinator1568021905
  6. Kelly Arkell, FNPFamily Nurse Practitioner1710498845

Verify Anusiyanthan Mariampillai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlaska State Medical Board
    Search for license 118827
    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 Alaska 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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50% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

440 Medicare Part D claims for 57 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 54 claims were for opioids.

  1. Anusiyanthan Mariampillai440
  2. Specialty average877

Most prescribed

  1. Dexamethasone29 claims
  2. Metoprolol Succinate21 claims
  3. Oxycodone Hcl19 claims
  4. Ondansetron Hcl17 claims
  5. Ondansetron Odt16 claims
  6. Prednisone16 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): 87.1 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 score77.4
  2. Costout of 100 · 30%62.9
  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: $554.92

7 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. 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. Anusiyanthan Mariampillai$554.92
  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.

Bills Medicare through one group practice

  1. Alaska Native Tribal Health ConsortiumAnchorage, AK

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

Anusiyanthan Mariampillai among 21 hematology & oncology physician records in Alaska

Anusiyanthan Mariampillai, M.D is one of 21 hematology & oncology physician records with a practice address in Alaska. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 76% of them.

  • NPI issued2012 · 76% of these records are older, 19% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2011 · median 1999 among the 15 with a school on file
  • Record last updated2017 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Alaska practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Alaska

There are 21 hematology & oncology physician records in Alaska.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Charles Buess, MDAnchorage, AK 995081124548284
  2. Ellen Chirichella, MDAnchorage, AK 995081952528499
  3. Susan Delgalvis, M.D.Anchorage, AK 995081184605313
  4. Theodore Kim, D.O.Anchorage, AK 995081952325359
  5. Mary Klix, MDAnchorage, AK 995081669447595
  6. Steven Liu, M.D.Anchorage, AK 995081164462834
  7. Matthew Olnes, MDAnchorage, AK 995081396760021
  8. Max Rabinowitz, MDAnchorage, AK 995081295770972

Common questions

What is Anusiyanthan Mariampillai, M.D's NPI number?

Anusiyanthan Mariampillai, M.D's National Provider Identifier (NPI) is 1518221977, issued on Jul 1, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Anusiyanthan Mariampillai, M.D located?

The NPPES record lists a practice address at 4315 Diplomacy Dr, Anchorage, AK, 99508. Phone: (907) 729-1180. Providers update this record themselves, so call before visiting.

How can I verify Anusiyanthan Mariampillai, M.D's license?

NPPES lists Alaska license number 118827, as entered by the provider. Search the Alaska State Medical Board at https://www.commerce.alaska.gov/web/cbpl/ProfessionalLicensing/StateMedicalBoard.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Anusiyanthan Mariampillai, M.D prescribe under Medicare Part D?

In 2024, Anusiyanthan Mariampillai, M.D had 440 Medicare Part D claims for 57 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Anusiyanthan Mariampillai, M.D's MIPS final score?

The 2023 MIPS final score is 87.1 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.