NPPES file of Aug 9, 2026

Karen Johnson, MD

Neonatal-Perinatal Medicine Physician · Houston, TX

Karen Johnson, MD is a neonatal-perinatal medicine physician with a practice address in Houston, Texas, and NPI 1700966066, issued on Oct 17, 2006. Check the license (Texas G6444, 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
1700966066
Name
Karen Johnson
Credential
MD
Primary taxonomy
Neonatal-Perinatal Medicine Physician 2080N0001X
License number
G6444 TX
Self-reported in NPPES; status is on the state search
Practice location
6621 Fannin St, Houston, TX 77030
Phone
(832) 826-1380
Enumerated
Oct 17, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(832) 825-2799
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 6621 Fannin St

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

  1. Saify Abbasi, M.DNeonatal-Perinatal Medicine Physician1730219395
  2. Mohammad Abu Arja, MDPediatric Hematology & Oncology Physician1235626839
  3. Darlene Acorda, PNPPediatric Nurse Practitioner1982837340
  4. Lauren Adams, PA-CPhysician Assistant1821289265
  5. Adekunle Adesina, MD PHDAnatomic Pathology Physician1376599225
  6. Natasha Afonso, MD, MPHPediatric Critical Care Medicine Physician1487815007

Verify Karen Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G6444
    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

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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Industry payments in 2024: $19.07

1 payment: food and beverage; the largest payer was Siemens Medical Solutions USA, Inc. The 875 providers of this specialty with any payment received $849.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Johnson$19.07
  2. Specialty average$849.08

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

Karen Johnson among 697 neonatal-perinatal medicine physician records in Texas

Karen Johnson, MD is one of 697 neonatal-perinatal medicine physician records with a practice address in Texas. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 56% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2007 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal-Perinatal Medicine Physician providers in Texas

There are 697 neonatal-perinatal medicine physician records in Texas.

The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes

  1. Steven Abrams, M.D.Houston, TX 770301790782670
  2. James Adams, M.D.Houston, TX 770301649276510
  3. Maria Carlos, MDHouston, TX 770301174503346
  4. See Chan, MDHouston, TX 770301225000714
  5. Susan Denson, M.D.Houston, TX 770301568408219
  6. Catherine Gannon, M.D.Houston, TX 770301144264722
  7. Sangeeta Kandpal, MDHouston, TX 770301740243294
  8. Terri Major-Kincade, M.D.Houston, TX 770301326085473

Common questions

What is Karen Johnson, MD's NPI number?

Karen Johnson, MD's National Provider Identifier (NPI) is 1700966066, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Karen Johnson, MD located?

The NPPES record lists a practice address at 6621 Fannin St, Houston, TX, 77030. Phone: (832) 826-1380. Providers update this record themselves, so call before visiting.

How can I verify Karen Johnson, MD's license?

NPPES lists Texas license number G6444, 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.

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.