NPPES file of Aug 9, 2026

Aileen Armstrong, MD

Anesthesiology Physician · Ann Arbor, MI

Aileen Armstrong, MD is an anesthesiology physician with a practice address in Ann Arbor, Michigan, and NPI 1114046430, issued on Mar 28, 2007. Check the license on the Michigan Board of Medicine (LARA); 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
1114046430
Name
Aileen Armstrong
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
25MA08770700 NJ
Self-reported in NPPES; status is on the state search
Practice location
1500 E Medical Center Dr, Ann Arbor, MI 48109
Phone
(734) 936-4280
Enumerated
Mar 28, 2007
Record last updated
Aug 30, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(734) 936-9091
Medicare enrollment
Enrolled (PECOS I20110107000754); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2005
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 1500 E Medical Center Dr

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

  1. Bryan Aaron, MDObstetrics & Gynecology Physician1578307724
  2. Keith Aaronson, MDAdvanced Heart Failure and Transplant Cardiology Physician1144305301
  3. Rajani Aatre, M.S., M.SC.Genetic Counselor (M.S.)1962122457
  4. Anjelica Abate, MDDiagnostic Radiology Physician1841819216
  5. Nicole Abbott, CRNACertified Registered Nurse Anesthetist1790329860
  6. Ahmed Abdel-Latif, M.D.Interventional Cardiology Physician1518181239

Verify Aileen Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)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 Michigan license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 46.3 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 score54.5
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $92.38

4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Aileen Armstrong$92.38
  2. Specialty average$669.59

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. Anesthesia Associates OF Morristown PAMorristown, NJ

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

Aileen Armstrong among 1,720 anesthesiology physician records in Michigan

Aileen Armstrong, MD is one of 1,720 anesthesiology physician records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 45% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2005 · median 2006 among the 1,126 with a school on file
  • Record last updated2013 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

395 anesthesiology physician records list a practice address in Ann Arbor

They are 395 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,720 anesthesiology physician records in Michigan.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Prabhakara Basavaraju, MDAnn Arbor, MI 481091245256809
  2. Robert Bettendorf, M.D.Ann Arbor, MI 481091043290786
  3. Milo Engoren, MDAnn Arbor, MI 481091306845144
  4. Shobha Malviya, MDAnn Arbor, MI 481091275559882
  5. George Mashour, MDAnn Arbor, MI 481091184690349
  6. Marykutty Mathai, MDAnn Arbor, MI 481091912923525
  7. Laurel Moore, M.D.Ann Arbor, MI 481091225081979
  8. Meenakshi Moorthy, MDAnn Arbor, MI 481091790701316

Common questions

What is Aileen Armstrong, MD's NPI number?

Aileen Armstrong, MD's National Provider Identifier (NPI) is 1114046430, issued on Mar 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Aileen Armstrong, MD located?

The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4280. Providers update this record themselves, so call before visiting.

How can I verify Aileen Armstrong, MD's license?

Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Aileen Armstrong, MD's MIPS final score?

The 2023 MIPS final score is 46.3 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.