NPPES file of Aug 9, 2026

Thomas C. Ly, MD

Family Medicine Physician · Lake Havasu City, AZ

Thomas C. Ly, MD is a family medicine physician with a practice address in Lake Havasu City, Arizona, and NPI 1891007787, issued on Jul 8, 2010. Check the license (Arizona 45537, as entered in NPPES) on the Arizona 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
1891007787
Name
Thomas C. Ly
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
45537 AZ
Self-reported in NPPES; status is on the state search
Practice location
101 Civic Center LN, Lake Havasu City, AZ 86403
Phone
(928) 854-0002
Enumerated
Jul 8, 2010
Record last updated
Jan 18, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(928) 453-0885
Medicaid ID
666099 AZ
Medicare enrollment
Enrolled (PECOS I20111227000084); accepts 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 101 Civic Center LN

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

  1. Zane Ahmed, DOInternal Medicine Physician1730685058
  2. Nancy Anderson, P.T.Physical Therapist1912045667
  3. Michael Barber, MS, APRN, CRNACertified Registered Nurse Anesthetist1245702927
  4. Kathryn Baxter, NPAcute Care Nurse Practitioner1881286052
  5. Abbas Cheema, MDInternal Medicine Physician1083284053
  6. Mark Chorebanian, MDInternal Medicine Physician1003860842

Verify Thomas C. Ly in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 45537
    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 Arizona 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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85% fewer Medicare Part D claims than the average family medicine physician in 2024

524 Medicare Part D claims for 229 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 36 claims were for opioids.

  1. Thomas Ly524
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium37 claims
  2. Furosemide30 claims
  3. Metoprolol Tartrate29 claims
  4. Clopidogrel27 claims
  5. Amiodarone Hcl25 claims
  6. Oxycodone Hcl23 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): 97.5 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 score98.6
  2. Costout of 100 · 30%85.6
  3. Promoting interoperabilitynot scored (reweighted)
  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: $48.18

2 payments; by number, the most common kind was food and beverage; the largest payer was Ceribell, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Ly$48.18
  2. Specialty average$902.55

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. Apogee Medical Group IncLake Havasu City, AZ
  2. LA Paz Regional Hospital IncParker, AZ

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

Thomas C. Ly among 3,119 family medicine physician records in Arizona

Thomas C. Ly, MD is one of 3,119 family medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 62% of them.

  • NPI issued2010 · 62% of these records are older, 36% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2006 · median 2006 among the 1,775 with a school on file
  • Record last updated2012 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 family medicine physician records list a practice address in Lake Havasu City

They are 14 of the 626 NPPES records with a practice address in Lake Havasu City, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Joselyn Branchik, DOLake Havasu City, AZ 864031679736193
  2. Jeffrey Carls, MDLake Havasu City, AZ 864031871511295
  3. Daniel Itano, D.O.Lake Havasu City, AZ 864031194133041
  4. Kartik Iyer, MDLake Havasu City, AZ 864031922594373
  5. Manu Lonial, M.D.Lake Havasu City, AZ 864031063553543
  6. Ashley Mulder, MDLake Havasu City, AZ 864031104455989
  7. Michael Rosen, MDLake Havasu City, AZ 864031124123765
  8. Rodolphe Taby, M.D.Lake Havasu City, AZ 864031710271697

Common questions

What is Thomas C. Ly, MD's NPI number?

Thomas C. Ly, MD's National Provider Identifier (NPI) is 1891007787, issued on Jul 8, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Thomas C. Ly, MD located?

The NPPES record lists a practice address at 101 Civic Center LN, Lake Havasu City, AZ, 86403. Phone: (928) 854-0002. Providers update this record themselves, so call before visiting.

How can I verify Thomas C. Ly, MD's license?

NPPES lists Arizona license number 45537, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Thomas C. Ly, MD prescribe under Medicare Part D?

In 2024, Thomas C. Ly, MD had 524 Medicare Part D claims for 229 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Thomas C. Ly, MD's MIPS final score?

The 2023 MIPS final score is 97.5 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.