NPPES file of Aug 9, 2026

Mark Douglas Aierstok, MD

Sports Medicine (Orthopaedic Surgery) Physician · Poughkeepsie, NY

Mark Douglas Aierstok, MD is a sports medicine (orthopaedic surgery) physician with a practice address in Poughkeepsie, New York, and NPI 1881677417, issued on Nov 29, 2005. Check the license (New York 238646, 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
1881677417
Name
Mark Douglas Aierstok
Credential
MD
Primary taxonomy
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
License numbers
238646 NY
017655 ME
Self-reported in NPPES; status is on the state search
Practice location
1910 South RD, Poughkeepsie, NY 12601
Phone
(845) 454-0120
Enumerated
Nov 29, 2005
Record last updated
Jan 23, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(845) 454-6080
Medicaid ID
03074802 NY
Medicare enrollment
Enrolled (PECOS I20090317000366); accepts Medicare assignment
Medical or professional school
East Tennessee State University Quillen College Of Medicine, 2000
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 1910 South RD

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

  1. Daniel AbrahamPhysician Assistant1659914497
  2. Zahra Asif, PT, DPT, CSCSPhysical Therapist1780360594
  3. Ryan AtkinsPhysical Therapist1285281923
  4. Carl Barbera, MDSurgical Oncology Physician1326068420
  5. Laurie Barnum, PT, OCSPhysical Therapist1639143563
  6. William Barrick, MDOrthopaedic Surgery of the Spine Physician1336165414

Verify Mark Douglas Aierstok 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 238646
    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

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7% fewer Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024

267 Medicare Part D claims for 122 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 56 claims were for opioids.

  1. Mark Aierstok267
  2. Specialty average288

Most prescribed

  1. Meloxicam109 claims
  2. Oxycodone Hcl36 claims
  3. Methylprednisolone26 claims
  4. Mupirocin17 claims
  5. Oxycodone-Acetaminophen17 claims
  6. Tizanidine Hcl13 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): 0 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 score0.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $145.36

4 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 2,400 providers of this specialty with any payment received $19,779.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Aierstok$145
  2. Specialty average$19,779

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. Orthopaedic And Neurosurgery Specialists, PLLCPoughkeepsie, NY

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

Mark Douglas Aierstok among 238 sports medicine (orthopaedic surgery) physician records in New York

Mark Douglas Aierstok, MD is one of 238 sports medicine (orthopaedic surgery) physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2000 · median 2005 among the 188 with a school on file
  • Record last updated2014 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Orthopaedic Surgery) Physician providers in New York

There are 238 sports medicine (orthopaedic surgery) physician records in New York.

The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes

  1. Lawrence Kusior, MDPoughkeepsie, NY 126011114950227
  2. Stephen Maurer, M.D.Poughkeepsie, NY 126011790724334
  3. John McLaughlin, M.D.Poughkeepsie, NY 126011841350097
  4. Andrew Stewart, MDPoughkeepsie, NY 126011427078534
  5. William Thompson, M.D.Poughkeepsie, NY 126031992899868
  6. Jeremy Mangion, MDFishkill, NY 125241679878706
  7. Lawrence Fein, MDSaratoga Springs, NY 128661821024068
  8. Joseph Larosa, MDSaratoga Springs, NY 128661053327338

Common questions

What is Mark Douglas Aierstok, MD's NPI number?

Mark Douglas Aierstok, MD's National Provider Identifier (NPI) is 1881677417, issued on Nov 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Douglas Aierstok, MD located?

The NPPES record lists a practice address at 1910 South RD, Poughkeepsie, NY, 12601. Phone: (845) 454-0120. Providers update this record themselves, so call before visiting.

How can I verify Mark Douglas Aierstok, MD's license?

NPPES lists New York license number 238646, 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 Mark Douglas Aierstok, MD prescribe under Medicare Part D?

In 2024, Mark Douglas Aierstok, MD had 267 Medicare Part D claims for 122 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. Part D covers Medicare prescriptions only.

What is Mark Douglas Aierstok, MD's MIPS final score?

The 2023 MIPS final score is 0 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.