NPPES file of Aug 9, 2026

Katherine Woolridge Johnson, MD

Dermatopathology Physician · Galveston, TX

Katherine Woolridge Johnson, MD is a dermatopathology physician with a practice address in Galveston, Texas, and NPI 1437808326, issued on Mar 20, 2022. Check the license (Texas V9741, as entered in NPPES) on the Texas Medical Board; 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
1437808326
Name
Katherine Woolridge Johnson
Credential
MD
Primary taxonomy
Dermatopathology Physician 207ND0900X
License number
V9741 TX
Self-reported in NPPES; status is on the state search
Practice location
1005 Harborside Drive 5TH Floor, Galveston, TX 77555
Phone
(409) 747-3376
Enumerated
Mar 20, 2022
Record last updated
May 7, 2026
Medicare enrollment
Enrolled (PECOS I20260518003702); may accept 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 1005 Harborside Drive 5TH Floor

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

  1. Jeffrey Hoyt, DOSurgery Physician1235822644
  2. Marie Vu, MDDermatology Physician1245934389

Verify Katherine Woolridge Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license V9741
    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 Texas license search

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11% fewer Medicare Part D claims than the average dermatopathology physician in 2024

615 Medicare Part D claims for 250 beneficiaries, against an average of 693 among the 249 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Katherine Johnson615
  2. Specialty average693

Most prescribed

  1. Triamcinolone Acetonide88 claims
  2. Hydrocortisone75 claims
  3. Ketoconazole74 claims
  4. Clobetasol Propionate62 claims
  5. Mupirocin30 claims
  6. Fluocinonide27 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.

Katherine Woolridge Johnson among 40 dermatopathology physician records in Texas

Katherine Woolridge Johnson, MD is one of 40 dermatopathology physician records with a practice address in Texas. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.

  • NPI issued2022 · 95% of these records are older, 0% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2017 · median 2010 among the 29 with a school on file
  • Record last updated2026 · 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 207ND0900X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatopathology Physician providers in Texas

There are 40 dermatopathology physician records in Texas.

The 8 dermatopathology physician records with the nearest ZIP codes

  1. Mary Cavanagh, MDLeague City, TX 775731871236778
  2. Prapand Apisarnthanarax, M.D., F.A.C.P.Webster, TX 775981891811667
  3. Matthew Petitt, DOPasadena, TX 775041912101593
  4. Miranda Ewelukwa, MDSugar Land, TX 774781174967756
  5. Simo Huang, MDBellaire, TX 774011346730066
  6. Melissa Chiang, MDSpring, TX 773881568531739
  7. Maria Colome, MDSpring, TX 773791033214689
  8. Cindy Greenberg, M.D.Kingwood, TX 773391649247115

Common questions

What is Katherine Woolridge Johnson, MD's NPI number?

Katherine Woolridge Johnson, MD's National Provider Identifier (NPI) is 1437808326, issued on Mar 20, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Woolridge Johnson, MD located?

The NPPES record lists a practice address at 1005 Harborside Drive 5TH Floor, Galveston, TX, 77555. Phone: (409) 747-3376. Providers update this record themselves, so call before visiting.

How can I verify Katherine Woolridge Johnson, MD's license?

NPPES lists Texas license number V9741, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Katherine Woolridge Johnson, MD prescribe under Medicare Part D?

In 2024, Katherine Woolridge Johnson, MD had 615 Medicare Part D claims for 250 beneficiaries; the average among dermatopathology physician prescribers was 693. 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.