NPPES file of Aug 9, 2026

Katherine Ann Walker, M.D.

Urology Physician · Bethesda, MD

Katherine Ann Walker, M.D. is a urology physician with a practice address in Bethesda, Maryland, and NPI 1902244171, issued on Jun 11, 2013. Check the license (Maryland D0099381, as entered in NPPES) on the Maryland Board of Physicians; 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
1902244171
Name
Katherine Ann Walker
Credential
M.D.
Primary taxonomy
Urology Physician 208800000X
License numbers
D0099381 MD
18015 HI
D0099381 HI
0101268397 VA
Self-reported in NPPES; status is on the state search
Practice location
6410 Rockledge Dr Ste 503, Bethesda, MD 20817
Phone
(301) 530-1700
Enumerated
Jun 11, 2013
Record last updated
Mar 12, 2025
Medicare enrollment
Enrolled (PECOS I20200407000046); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 2013
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 6410 Rockledge Dr Ste 503

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

  1. Bethlehem Addis, NPFamily Nurse Practitioner1417445107
  2. Anju Johnson, CRNPNurse Practitioner1104392513
  3. Mark Rosenblum, MDUrology Physician1003809310
  4. Devang Sharma, M.D.Urology Physician1114346004
  5. Kathleen Sterling, MDUrology Physician1003041765

Verify Katherine Ann Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0099381
    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 Maryland license search

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85% fewer Medicare Part D claims than the average urology physician in 2024

206 Medicare Part D claims for 105 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Katherine Walker206
  2. Specialty average1,340

Most prescribed

  1. Estradiol28 claims
  2. Alfuzosin Hcl Er26 claims
  3. Sulfamethoxazole-Trimethoprim14 claims
  4. Tamsulosin Hcl13 claims
  5. Cephalexin11 claims
  6. Gemtesa11 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): 100 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. Qualitynot scored (reweighted)
  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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,416.91

32 payments; by number, the most common kind was food and beverage; the largest payer was Teleflex LLC. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Walker$1,416.91
  2. Specialty average$3,800.04

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. Chesapeake Urology Associates LLCBethesda, MD

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

Urology Physician providers in Maryland

There are 311 urology physician records in Maryland.

Other urology physician records in Maryland

  1. Leslie Abramowitz, M.D.Baltimore, MD1255388690
  2. Harbhajan Ajrawat, MDGreenbelt, MD1205883881
  3. Christen Alevizatos, M.D.Baltimore, MD1154376325
  4. Harold Alfert, M.D.Baltimore, MD1316901903
  5. Mohamad Allaf, M.D.Baltimore, MD1619912243
  6. Matthew Allaway, DOCumberland, MD1386750057
  7. Jordan Angell, MDWestminster, MD1306021076
  8. Marc Applestein, M.D.Columbia, MD1679511620
  9. Natalia Arias Villela, MDTowson, MD1699279927
  10. Barry Aron, MDRockville, MD1760495261

Common questions

What is Katherine Ann Walker, M.D.'s NPI number?

Katherine Ann Walker, M.D.'s National Provider Identifier (NPI) is 1902244171, issued on Jun 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Ann Walker, M.D. located?

The NPPES record lists a practice address at 6410 Rockledge Dr Ste 503, Bethesda, MD, 20817. Phone: (301) 530-1700. Providers update this record themselves, so call before visiting.

How can I verify Katherine Ann Walker, M.D.'s license?

NPPES lists Maryland license number D0099381, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katherine Ann Walker, M.D. prescribe under Medicare Part D?

In 2024, Katherine Ann Walker, M.D. had 206 Medicare Part D claims for 105 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

What is Katherine Ann Walker, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.