NPPES file of Aug 9, 2026

Carl R. Gray, M.D.

Hematology & Oncology Physician · Ogden, UT

Carl R. Gray, M.D. is a hematology & oncology physician with a practice address in Ogden, Utah, and NPI 1598873382, issued on Aug 29, 2006. Check the license (Utah 5553369-1205, as entered in NPPES) on the Utah Medical Licensing Board; 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
1598873382
Name
Carl R. Gray
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
5553369-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
5405 S 500 E Ste 202, Ogden, UT 84405
Phone
(801) 476-1777
Enumerated
Aug 29, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(801) 479-1479
Medicare enrollment
Enrolled (PECOS I20040421000802); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 1995
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 5405 S 500 E Ste 202

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

  1. Sean Anderson, D.O.Sports Medicine (Physical Medicine & Rehabilitation) Physician1063701217
  2. Amer HomsiVascular Surgery Physician1558752865
  3. Harold Johnson, M.D.Hematology & Oncology Physician1326156191
  4. Hyong Kim, M.D.Colon & Rectal Surgery Physician1427236082
  5. Natalie Mar, M.D.Dermatology Physician1891705588

Verify Carl R. Gray in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersUtah Medical Licensing Board
    Search for license 5553369-1205
    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 Utah 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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2.1 times the Medicare Part D claims of the average hematology & oncology physician in 2024

1,851 Medicare Part D claims for 306 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 128 claims were for opioids.

  1. Carl Gray1,851
  2. Specialty average877

Most prescribed

  1. Letrozole125 claims
  2. Lenalidomide104 claims
  3. Ondansetron Odt69 claims
  4. Ondansetron Hcl66 claims
  5. Acyclovir64 claims
  6. Prednisone64 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): 82.8 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 score68.7
  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: $3,022.46

154 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carl Gray$3,022.46
  2. Specialty average$7,481.41

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. Ogden Clinic Specialty Services LLCOgden, UT

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

Carl R. Gray among 99 hematology & oncology physician records in Utah

Carl R. Gray, M.D. is one of 99 hematology & oncology physician records with a practice address in Utah. 80% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 72% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1995 · median 2009 among the 65 with a school on file
  • Record last updated2007 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Utah

There are 99 hematology & oncology physician records in Utah.

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

  1. Belisario Arango, MDOgden, UT 844051295976827
  2. Harold Johnson, M.D.Ogden, UT 844051326156191
  3. Joshua Ramsay, DO, MBAOgden, UT 844051093245607
  4. David Cassel, M.D.Ogden, UT 844031972922938
  5. Vincent Hansen, MDOgden, UT 844031528044385
  6. James Mason, D.O.Ogden, UT 844031114362001
  7. Ali Ben-Jacob, MDLogan, UT 843411083611669
  8. Prashant Sharma, MDLogan, UT 843411548430663

Common questions

What is Carl R. Gray, M.D.'s NPI number?

Carl R. Gray, M.D.'s National Provider Identifier (NPI) is 1598873382, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carl R. Gray, M.D. located?

The NPPES record lists a practice address at 5405 S 500 E Ste 202, Ogden, UT, 84405. Phone: (801) 476-1777. Providers update this record themselves, so call before visiting.

How can I verify Carl R. Gray, M.D.'s license?

NPPES lists Utah license number 5553369-1205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carl R. Gray, M.D. prescribe under Medicare Part D?

In 2024, Carl R. Gray, M.D. had 1,851 Medicare Part D claims for 306 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Carl R. Gray, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.8 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.