NPPES file of Aug 9, 2026

Katelyn St Martin, PA-C

Physician Assistant · Crystal Lake, IL

Katelyn St Martin, PA-C is a physician assistant with a practice address in Crystal Lake, Illinois, and NPI 1144703992, issued on Sep 7, 2018. Check the license (Illinois 085006852, as entered in NPPES) with the Illinois 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1144703992
Name
Katelyn St Martin
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
085006852 IL
085-006852 IL
Self-reported in NPPES; status is on the state search
Practice location
420 N IL Route 31, Crystal Lake, IL 60012
Phone
(815) 356-5200
Enumerated
Sep 7, 2018
Record last updated
Apr 24, 2023
Fax
(815) 356-5262
Medicare enrollment
Enrolled (PECOS I20190426000311); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 420 N IL Route 31

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

  1. Sam Biafora, M.D.Orthopaedic Hand Surgery Physician1205037991
  2. Laura Blumenkamp, PTPhysical Therapist1356608673
  3. Shelly Chamberlin, OTR/L, CHTOccupational Therapist1336335900
  4. Devin Chen, PA-CPhysician Assistant1174305312
  5. Staci Connery, P.T.Physical Therapist1932364338
  6. William Cox, M.D.Sports Medicine (Orthopaedic Surgery) Physician1407928062

Verify Katelyn St Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085006852
    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
Find 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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6% fewer Medicare Part D claims than the average physician assistant in 2024

781 Medicare Part D claims for 315 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 286 claims were for opioids.

  1. Katelyn St Martin781
  2. Specialty average830

Most prescribed

  1. Tramadol Hcl172 claims
  2. Celecoxib170 claims
  3. Meloxicam132 claims
  4. Hydrocodone-Acetaminophen84 claims
  5. Diclofenac Sodium65 claims
  6. Methylprednisolone50 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): 94.1 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 score82.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $14.13

1 payment: food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katelyn St Martin$14.13
  2. Specialty average$841.65

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

Bills Medicare through 2 group practices

  1. Central Dupage Physician GroupHuntley, IL
  2. Northwestern Medical Faculty FoundationHuntley, IL

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

23 physician assistant records list a practice address in Crystal Lake

They are 23 of the 1,442 NPPES records with a practice address in Crystal Lake, and 4,926 physician assistant records in Illinois.

Other physician assistant records in Illinois

  1. Brooke Aarhus, PA-CPark Ridge, IL1760985469
  2. Sana Abbasi, PACarol Stream, IL1831803295
  3. Susan Abbinanti, PA-CElk Grove Village, IL1679647358
  4. Katheryn Abbott, PASchaumburg, IL1356842082
  5. Noor Abdelrahman, PA-CChicago, IL1851012413
  6. Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
  7. Kazuko Abe, P.A.Chicago, IL1881840783
  8. Greta Abel, PA-CWheaton, IL1174844096
  9. Derrik AbellAnna, IL1821618471
  10. Jeanine Aberbook, PA-CChicago, IL1518664176

Common questions

What is Katelyn St Martin, PA-C's NPI number?

Katelyn St Martin, PA-C's National Provider Identifier (NPI) is 1144703992, issued on Sep 7, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Katelyn St Martin, PA-C located?

The NPPES record lists a practice address at 420 N IL Route 31, Crystal Lake, IL, 60012. Phone: (815) 356-5200. Providers update this record themselves, so call before visiting.

How can I verify Katelyn St Martin, PA-C's license?

NPPES lists Illinois license number 085006852, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Katelyn St Martin, PA-C prescribe under Medicare Part D?

In 2024, Katelyn St Martin, PA-C had 781 Medicare Part D claims for 315 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Katelyn St Martin, PA-C's MIPS final score?

The 2023 MIPS final score is 94.1 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.