NPPES file of Aug 9, 2026

William J. Baylis, D.O.

Orthopaedic Hand Surgery Physician · Palos Heights, IL

William J. Baylis, D.O. is an orthopaedic hand surgery physician with a practice address in Palos Heights, Illinois, and NPI 1639177603, issued on Jul 13, 2005. Check the license (Illinois 036082149, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1639177603
Name
William J. Baylis
Credential
D.O.
Primary taxonomy
Orthopaedic Hand Surgery Physician 207XS0106X
License number
036082149 IL
Self-reported in NPPES; status is on the state search
Practice location
7600 W College Dr, Palos Heights, IL 60463
Phone
(708) 361-0600
Enumerated
Jul 13, 2005
Record last updated
Oct 12, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(708) 923-2529
Medicare enrollment
Enrolled (PECOS I20051219000204); accepts Medicare assignment
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 7600 W College Dr

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

  1. Hacer Aksel, DDS, PHDEndodontics1235786617
  2. Maura Amundson, MS, PTOrthopedic Physical Therapist1457337727
  3. Christopher Calvert, M.D.Pediatrics Physician1427084532
  4. Susan Damstra, PTPhysical Therapist1801221080
  5. Robert Dupuis, M.D.Occupational Medicine Physician1972700870
  6. Henry Fuentes, M.D.Sports Medicine (Orthopaedic Surgery) Physician1043218050

Verify William J. Baylis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036082149
    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 Illinois 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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20% fewer Medicare Part D claims than the average orthopaedic hand surgery physician in 2024

148 Medicare Part D claims for 94 beneficiaries, against an average of 186 among the 2,203 providers of this specialty who prescribed in Part D. 83 claims were for opioids.

  1. William Baylis148
  2. Specialty average186

Most prescribed

  1. Hydrocodone-Acetaminophen49 claims
  2. Prednisone19 claims
  3. Ibuprofen17 claims
  4. Tramadol Hcl15 claims
  5. Acetaminophen-Codeine12 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): 67.1 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 score67.9
  2. Costout of 100 · 30%49.2
  3. Promoting interoperabilitynot scored (reweighted)
  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: $70.60

2 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 1,819 providers of this specialty with any payment received $5,529.86 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Baylis$70.60
  2. Specialty average$5,529.86

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. Parkview Orthopaedic Group S CPalos Heights, IL

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

William J. Baylis among 129 orthopaedic hand surgery physician records in Illinois

William J. Baylis, D.O. is one of 129 orthopaedic hand surgery physician records with a practice address in Illinois. 89% 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, 90% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1989 · median 2004 among the 106 with a school on file
  • Record last updated2018 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XS0106X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopaedic Hand Surgery Physician providers in Illinois

There are 129 orthopaedic hand surgery physician records in Illinois.

The 8 orthopaedic hand surgery physician records with the nearest ZIP codes

  1. Kyle Macgillis, MDPalos Heights, IL 604631487911459
  2. Dmitriy Peresada, MDOrland Park, IL 604671740817774
  3. Emily Mayekar, M.D.Oak Lawn, IL 604531306136668
  4. Hyun Oh, M.D.Oak Forest, IL 604521316972417
  5. Jason Ghodasra, M.D.New Lenox, IL 604511316280159
  6. Robert Coats, M.D.Tinley Park, IL 604771861460081
  7. Serafin Deleon, MDTinley Park, IL 604771326091414
  8. Nitin Goyal, MDJoliet, IL 604351437548120

Common questions

What is William J. Baylis, D.O.'s NPI number?

William J. Baylis, D.O.'s National Provider Identifier (NPI) is 1639177603, issued on Jul 13, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William J. Baylis, D.O. located?

The NPPES record lists a practice address at 7600 W College Dr, Palos Heights, IL, 60463. Phone: (708) 361-0600. Providers update this record themselves, so call before visiting.

How can I verify William J. Baylis, D.O.'s license?

NPPES lists Illinois license number 036082149, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William J. Baylis, D.O. prescribe under Medicare Part D?

In 2024, William J. Baylis, D.O. had 148 Medicare Part D claims for 94 beneficiaries; the average among orthopaedic hand surgery physician prescribers was 186. Part D covers Medicare prescriptions only.

What is William J. Baylis, D.O.'s MIPS final score?

The 2023 MIPS final score is 67.1 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.