NPPES file of Aug 9, 2026

Katherine Marie Williams, MD

Obstetrics & Gynecology Physician · Kokomo, IN

Katherine Marie Williams, MD is an obstetrics & gynecology physician with a practice address in Kokomo, Indiana, and NPI 1336439926, issued on Apr 15, 2011. Check the license (Indiana 01075413A, as entered in NPPES) on the Medical Licensing Board of Indiana; 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
1336439926
Name
Katherine Marie Williams
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
01075413A IN
Self-reported in NPPES; status is on the state search
Practice location
2130 W Sycamore St Ste 260, Kokomo, IN 46901
Phone
(765) 236-8457
Enumerated
Apr 15, 2011
Record last updated
May 18, 2022
Medicare enrollment
Enrolled (PECOS I20150721001705); accepts Medicare assignment
Medical or professional school
Indiana University School Of Medicine, 2011
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 2130 W Sycamore St Ste 260

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

  1. Sara Berry, FNP-CFamily Nurse Practitioner1730632464
  2. Emily Hadley, MDObstetrics & Gynecology Physician1831726868
  3. Sheila Hockman, DOObstetrics & Gynecology Physician1013948249
  4. Ashleigh Kaylor, FNP-CFamily Nurse Practitioner1528476736
  5. Ashley Kenyon, R.N.Advanced Practice Midwife1700187820
  6. Corrynn Mix, FNP-CWomen's Health Nurse Practitioner1972326684

Verify Katherine Marie Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01075413A
    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 Indiana 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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72% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

46 Medicare Part D claims for 20 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Katherine Williams46
  2. Specialty average165

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: $15.12

1 payment: food and beverage; the largest payer was Eagle Pharmaceuticals, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Williams$15.12
  2. Specialty average$1,030.61

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. St Vincent Medical Group IncKokomo, IN

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

Katherine Marie Williams among 894 obstetrics & gynecology physician records in Indiana

Katherine Marie Williams, MD is one of 894 obstetrics & gynecology physician records with a practice address in Indiana. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.

  • NPI issued2011 · 74% of these records are older, 24% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2011 · median 2004 among the 591 with a school on file
  • Record last updated2022 · 43% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Indiana

There are 894 obstetrics & gynecology physician records in Indiana.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Emily Hadley, MDKokomo, IN 469011831726868
  2. Michelle Haendiges, M.D.Kokomo, IN 469011891978060
  3. Sheila Hockman, DOKokomo, IN 469011013948249
  4. Steven Hott, MDKokomo, IN 469011104901552
  5. Christi Redmon, MDKokomo, IN 469011447335898
  6. Britney Tuskan, DOKokomo, IN 469011043702731
  7. Cecelia Powless, MDKokomo, IN 469021093727620
  8. Rani Ramaswamy, M.D.Kokomo, IN 469021164717781

Common questions

What is Katherine Marie Williams, MD's NPI number?

Katherine Marie Williams, MD's National Provider Identifier (NPI) is 1336439926, issued on Apr 15, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Marie Williams, MD located?

The NPPES record lists a practice address at 2130 W Sycamore St Ste 260, Kokomo, IN, 46901. Phone: (765) 236-8457. Providers update this record themselves, so call before visiting.

How can I verify Katherine Marie Williams, MD's license?

NPPES lists Indiana license number 01075413A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katherine Marie Williams, MD prescribe under Medicare Part D?

In 2024, Katherine Marie Williams, MD had 46 Medicare Part D claims for 20 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.