NPPES file of Aug 9, 2026

John D. Maskill

Orthopaedic Foot and Ankle Surgery Physician · Sheridan, MI

John D. Maskill is an orthopaedic foot and ankle surgery physician with a practice address in Sheridan, Michigan, and NPI 1669422077, issued on May 10, 2006. Check the license (Michigan 4301078141, as entered in NPPES) 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669422077
Name
John D. Maskill
Primary taxonomy
Orthopaedic Foot and Ankle Surgery Physician 207XX0004X
License numbers
4301078141 MI
017156 ME
Self-reported in NPPES; status is on the state search
Practice location
301 N Main St, Sheridan, MI 48884
Phone
(989) 291-3261
Enumerated
May 10, 2006
Record last updated
May 21, 2026
Medicare enrollment
Enrolled (PECOS I20050412001085); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2001
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 301 N Main St

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

  1. Michael Cearlock, M.D.Emergency Medicine Physician1053577908
  2. Stephen Frey, MDEmergency Medicine Physician1780642058
  3. Steven SutherlandPharmacist1801366125
  4. Elwood Wilkins, CRNACertified Registered Nurse Anesthetist1811198849

Verify John D. Maskill in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301078141
    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

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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4.2 times the Medicare Part D claims of the average orthopaedic foot and ankle surgery physician in 2024

945 Medicare Part D claims for 291 beneficiaries, against an average of 225 among the 648 providers of this specialty who prescribed in Part D. 407 claims were for opioids.

  1. John Maskill945
  2. Specialty average225

Most prescribed

  1. Hydrocodone-Acetaminophen169 claims
  2. Cyclobenzaprine Hcl149 claims
  3. Oxycodone-Acetaminophen126 claims
  4. Gabapentin117 claims
  5. Meloxicam104 claims
  6. Tramadol Hcl99 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.

Industry payments in 2024: $33,818.80

88 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 643 providers of this specialty with any payment received $23,314.63 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Maskill$33,819
  2. Specialty average$23,315

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

3 hospitals and group practices

  1. Center For Physical Rehabilitation And Therapy LPGrand Rapids, MI
  2. Center For Physical Rehabilitation IncGrand Rapids, MI
  3. Sheridan Community HospitalSheridan, MI · Critical Access Hospitals

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).

John D. Maskill among 15 orthopaedic foot and ankle surgery physician records in Michigan

John D. Maskill is one of 15 orthopaedic foot and ankle surgery physician records with a practice address in Michigan. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 47% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2001 · median 2001 among the 11 with a school on file
  • Record last updated2026 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0004X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 orthopaedic foot and ankle surgery physician record lists a practice address in Sheridan

They are 1 of the 19 NPPES records with a practice address in Sheridan, and 15 orthopaedic foot and ankle surgery physician records in Michigan.

The 8 orthopaedic foot and ankle surgery physician records with the nearest ZIP codes

  1. Michael Swords, DOLansing, MI 489111942275490
  2. Robert Gorman, MDKalamazoo, MI 490071518935121
  3. Erik Eller, MDNovi, MI 483741417113036
  4. John Khoury, M.D.Holland, MI 494241285842468
  5. Patricia Kolodziej, M.D.Grand Rapids, MI 495031659370666
  6. John Anderson, MDGrand Rapids, MI 495251700874294
  7. Garett Pangrazzi, M.D.Grand Rapids, MI 495251952614497
  8. Hadiya Khan, DPMWayne, MI 481841720829963

Common questions

What is John D. Maskill's NPI number?

John D. Maskill's National Provider Identifier (NPI) is 1669422077, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John D. Maskill located?

The NPPES record lists a practice address at 301 N Main St, Sheridan, MI, 48884. Phone: (989) 291-3261. Providers update this record themselves, so call before visiting.

How can I verify John D. Maskill's license?

NPPES lists Michigan license number 4301078141, as entered by the provider. 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.

How much does John D. Maskill prescribe under Medicare Part D?

In 2024, John D. Maskill had 945 Medicare Part D claims for 291 beneficiaries; the average among orthopaedic foot and ankle surgery physician prescribers was 225. 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.