NPPES file of Aug 9, 2026

Charles L. Yen, M.D.

Hematology & Oncology Physician · Houston, TX

Charles L. Yen, M.D. is a hematology & oncology physician with a practice address in Houston, Texas, and NPI 1215930268, issued on May 23, 2005. Check the license (Texas J5662, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215930268
Name
Charles L. Yen
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
J5662 TX
Self-reported in NPPES; status is on the state search
Practice location
17323 Red Oak Dr, Houston, TX 77090
Phone
(281) 440-5006
Enumerated
May 23, 2005
Record last updated
Nov 25, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(281) 440-6149
Medicare enrollment
Enrolled (PECOS I20100526000595); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 1992
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 17323 Red Oak Dr

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

  1. Mirtha Casimir, M.D.Specialist1528061306
  2. Laurent Gressot, M.D.Hematology & Oncology Physician1215930367
  3. Eric Kleinbaum, M.D.Hematology & Oncology Physician1932140159

Verify Charles L. Yen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J5662
    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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2.3 times the Medicare Part D claims of the average hematology & oncology physician in 2024

2,047 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. Brand-name drugs were 28% of claims. 271 claims were for opioids.

  1. Charles Yen2,047
  2. Specialty average877

Most prescribed

  1. Hydrocodone-Acetaminophen131 claims
  2. Eliquis93 claims
  3. Letrozole83 claims
  4. Revlimid77 claims
  5. Prednisone75 claims
  6. Ondansetron Hcl70 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): 74.9 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 score60.0
  2. Costout of 100 · 30%54.3
  3. Promoting interoperabilityout of 100 · 25%97.0
  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: $10,021.35

322 payments; by number, the most common kind was food and beverage; the largest payer was Karyopharm Therapeutics 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. Charles Yen$10,021
  2. Specialty average$7,481

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

Bills Medicare through 2 group practices

  1. Millennium Physicians Association PLLCHouston, TX
  2. Texas Oncology PAWebster, TX

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

Charles L. Yen among 922 hematology & oncology physician records in Texas

Charles L. Yen, M.D. is one of 922 hematology & oncology physician records with a practice address in Texas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 93% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1992 · median 2004 among the 691 with a school on file
  • Record last updated2014 · 51% 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 Texas 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 Texas

There are 922 hematology & oncology physician records in Texas.

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

  1. Richard Baltz, MDHouston, TX 770901326102781
  2. Giuseppe Fraschini, MDHouston, TX 770901336204130
  3. Laurent Gressot, M.D.Houston, TX 770901215930367
  4. Eric Kleinbaum, M.D.Houston, TX 770901932140159
  5. Tamarah Aldawoodi, M.DHouston, TX 770891255864120
  6. Irfan Jawed, MDHouston, TX 770891356508501
  7. Alison Rome, MDHouston, TX 770891790998078
  8. Issam Alawin, MBBS, MDHouston, TX 770941295040806

Common questions

What is Charles L. Yen, M.D.'s NPI number?

Charles L. Yen, M.D.'s National Provider Identifier (NPI) is 1215930268, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Charles L. Yen, M.D. located?

The NPPES record lists a practice address at 17323 Red Oak Dr, Houston, TX, 77090. Phone: (281) 440-5006. Providers update this record themselves, so call before visiting.

How can I verify Charles L. Yen, M.D.'s license?

NPPES lists Texas license number J5662, 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 Charles L. Yen, M.D. prescribe under Medicare Part D?

In 2024, Charles L. Yen, M.D. had 2,047 Medicare Part D claims for 306 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Charles L. Yen, M.D.'s MIPS final score?

The 2023 MIPS final score is 74.9 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.