NPPES file of Aug 9, 2026

Moira Armstrong

Physician Assistant · Ann Arbor, MI

Moira Armstrong is a physician assistant with a practice address in Ann Arbor, Michigan, and NPI 1598498909, issued on Jul 4, 2022. Check the license with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1598498909
Name
Moira Armstrong
Primary taxonomy
Physician Assistant 363A00000X
License number
PA2023-0283 NM
Self-reported in NPPES; status is on the state search
Practice location
891 Greenhills Dr, Ann Arbor, MI 48105
Phone
(269) 449-5757
Enumerated
Jul 4, 2022
Record last updated
Apr 30, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Moira Armstrong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this professionCheck 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
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67% fewer Medicare Part D claims than the average physician assistant in 2024

270 Medicare Part D claims for 191 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Moira Armstrong270
  2. Specialty average830

Most prescribed

  1. Prednisone43 claims
  2. Cephalexin24 claims
  3. Albuterol Sulfate Hfa18 claims
  4. Amoxicillin-Clavulanate Potass16 claims
  5. Doxycycline Hyclate16 claims
  6. Cyclobenzaprine Hcl11 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.

Moira Armstrong among 6,989 physician assistant records in Michigan

Moira Armstrong is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 76% of them.

  • NPI issued2022 · 76% of these records are older, 20% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

610 physician assistant records list a practice address in Ann Arbor

They are 610 of the 15,616 NPPES records with a practice address in Ann Arbor, and 6,989 physician assistant records in Michigan.

The 8 physician assistant records with the nearest ZIP codes

  1. Lisa Bayoff, PA-CAnn Arbor, MI 481051104902238
  2. Jeffrey Callard, PAAnn Arbor, MI 481051053347021
  3. Scott Denk, PA-CAnn Arbor, MI 481051841214533
  4. Anne Faucher, PA-CAnn Arbor, MI 481051417053984
  5. Lauren Frankel, PA-CAnn Arbor, MI 481051710995865
  6. Pamela Galofaro, PAAnn Arbor, MI 481051336226943
  7. Amy Holland, PAAnn Arbor, MI 481051679659700
  8. Robert Hoy, PA-CAnn Arbor, MI 481051871517599

Common questions

What is Moira Armstrong's NPI number?

Moira Armstrong's National Provider Identifier (NPI) is 1598498909, issued on Jul 4, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Moira Armstrong located?

The NPPES record lists a practice address at 891 Greenhills Dr, Ann Arbor, MI, 48105. Phone: (269) 449-5757. Providers update this record themselves, so call before visiting.

How can I verify Moira Armstrong's license?

Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Moira Armstrong prescribe under Medicare Part D?

In 2024, Moira Armstrong had 270 Medicare Part D claims for 191 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

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.