NPPES file of Aug 9, 2026

James Tseng, M.D.

Surgery Physician · Lake Havasu City, AZ

James Tseng, M.D. is a surgery physician with a practice address in Lake Havasu City, Arizona, and NPI 1245463157, issued on Aug 25, 2009. Check the license (Arizona 55430, 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
1245463157
Name
James Tseng
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License numbers
55430 AZ
4301092859 MI
Self-reported in NPPES; status is on the state search
Practice location
1972 Mesquite Ave, Lake Havasu City, AZ 86403
Phone
(288) 546-5009
Enumerated
Aug 25, 2009
Record last updated
Mar 11, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(928) 854-6206
Medicaid ID
203394 AZ
Medicare enrollment
Enrolled (PECOS I20200310000473); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 2008
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 1972 Mesquite Ave

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

  1. Albert Rizzo, MDSurgery Physician1174521819

Verify James Tseng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 55430
    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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1% fewer Medicare Part D claims than the average surgery physician in 2024

145 Medicare Part D claims for 98 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims. 30 claims were for opioids.

  1. James Tseng145
  2. Specialty average147

Most prescribed

  1. Suflave32 claims
  2. Hydrocodone-Acetaminophen26 claims
  3. Omeprazole18 claims
  4. Pantoprazole Sodium17 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 MIPS final score for 2023 (Medicare payment program): 98.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%94.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $20.26

1 payment: food and beverage; the largest payer was Medtronic, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Tseng$20.26
  2. Specialty average$3,513.80

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

James Tseng among 760 surgery physician records in Arizona

James Tseng, M.D. is one of 760 surgery physician records with a practice address in Arizona. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 53% of them.

  • NPI issued2009 · 53% of these records are older, 44% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2008 · median 2006 among the 401 with a school on file
  • Record last updated2020 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in Arizona

There are 760 surgery physician records in Arizona.

The 8 surgery physician records with the nearest ZIP codes

  1. Kaitlyn Patacca, MDLake Havasu City, AZ 864031437738242
  2. Albert Rizzo, MDLake Havasu City, AZ 864031174521819
  3. Abedon Saiz, MDLake Havasu City, AZ 864031477542934
  4. Floyd Wilks, MDLake Havasu City, AZ 864031124580030
  5. Mustafa Davis, M.D.Kingman, AZ 864011891967444
  6. James McKinney, M.D.Kingman, AZ 864011801107099
  7. Rodney Courson, M.D.Kingman, AZ 864091053411769
  8. Muhammad Khan, MDKingman, AZ 864091508850116

Common questions

What is James Tseng, M.D.'s NPI number?

James Tseng, M.D.'s National Provider Identifier (NPI) is 1245463157, issued on Aug 25, 2009. An NPI identifies a provider in billing; it is not a license.

Where is James Tseng, M.D. located?

The NPPES record lists a practice address at 1972 Mesquite Ave, Lake Havasu City, AZ, 86403. Phone: (288) 546-5009. Providers update this record themselves, so call before visiting.

How can I verify James Tseng, M.D.'s license?

NPPES lists Arizona license number 55430, 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 James Tseng, M.D. prescribe under Medicare Part D?

In 2024, James Tseng, M.D. had 145 Medicare Part D claims for 98 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.

What is James Tseng, M.D.'s MIPS final score?

The 2023 MIPS final score is 98.2 of 100. 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.