NPPES file of Aug 9, 2026

Douglas James Harrison, MD

Pediatric Hematology & Oncology Physician · Houston, TX

Douglas James Harrison, MD is a pediatric hematology & oncology physician with a practice address in Houston, Texas, and NPI 1821293176, issued on Jun 18, 2007. Check the license (Texas Q1413, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821293176
Name
Douglas James Harrison
Credential
MD
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License number
Q1413 TX
Self-reported in NPPES; status is on the state search
Practice location
1515 Holcombe Blvd, Houston, TX 77030
Phone
(713) 792-6161
Enumerated
Jun 18, 2007
Record last updated
Jan 11, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(401) 444-3872
Medicaid IDs
339956001 TX
1821293 RI
Medicare enrollment
Enrolled (PECOS I20251104003220); accepts Medicare assignment
Medical or professional school
Rutgers, Robert Woood Johnson Medical School, 2000
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 1515 Holcombe Blvd

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

  1. Ashley Aaroe, MDNeurology Physician1902295793
  2. Linda Abad, PA-CPhysician Assistant1063928240
  3. Cynthia Abarado, RN, GNPGerontology Nurse Practitioner1851471049
  4. Hussein Abbas, MD, PHDInternal Medicine Physician1609220532
  5. James Abbruzzese, M.D.Medical Oncology Physician1134233224
  6. Karim Abdeldaem, MDEmergency Medicine Physician1558056200

Verify Douglas James Harrison in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license Q1413
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 81.4 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. Qualityout of 100 · 30% of the final score81.3
  2. Costout of 100 · 30%50.0
  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).

Douglas James Harrison among 319 pediatric hematology & oncology physician records in Texas

Douglas James Harrison, MD is one of 319 pediatric hematology & oncology physician records with a practice address in Texas. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 57% newer
  • In a Medicare fileYes · 48% of these records are
  • In the CMS Doctors and Clinicians fileYes · 32% of these records are
  • Graduated2000 · median 2008 among the 103 with a school on file
  • Record last updated2017 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Hematology & Oncology Physician providers in Texas

There are 319 pediatric hematology & oncology physician records in Texas.

The 8 pediatric hematology & oncology physician records with the nearest ZIP codes

  1. Gladstone Airewele, M.D.Houston, TX 770301285630244
  2. Joann Ater, M.D.Houston, TX 770301780783639
  3. Mary Boone, MDHouston, TX 770301982651832
  4. Deborah Brown, M.D.Houston, TX 770301083658009
  5. Laurence Cooper, M.D.Houston, TX 770301508877754
  6. Najat Daw, M.D.Houston, TX 770301932102126
  7. Cynthia Herzog, M.D.Houston, TX 770301952400731
  8. William Hoots, M.D.Houston, TX 770301114962966

Common questions

What is Douglas James Harrison, MD's NPI number?

Douglas James Harrison, MD's National Provider Identifier (NPI) is 1821293176, issued on Jun 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Douglas James Harrison, MD located?

The NPPES record lists a practice address at 1515 Holcombe Blvd, Houston, TX, 77030. Phone: (713) 792-6161. Providers update this record themselves, so call before visiting.

How can I verify Douglas James Harrison, MD's license?

NPPES lists Texas license number Q1413, 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.

What is Douglas James Harrison, MD's MIPS final score?

The 2023 MIPS final score is 81.4 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.