NPPES file of Aug 9, 2026

John R. Tesser, MD

Rheumatology Physician · Phoenix, AZ

John R. Tesser, MD is a rheumatology physician with a practice address in Phoenix, Arizona, and NPI 1427049220, issued on Oct 31, 2005. Check the license (Arizona 11285, 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
1427049220
Name
John R. Tesser
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
11285 AZ
Self-reported in NPPES; status is on the state search
Practice location
9520 W Palm LN Ste 220, Phoenix, AZ 85037
Phone
(480) 443-8400
Enumerated
Oct 31, 2005
Record last updated
Aug 19, 2022
Fax
(480) 443-8697
Medicaid ID
206319 AZ
Medicare enrollment
Enrolled (PECOS I20041227000304); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 1977
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 9520 W Palm LN Ste 220

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

  1. Alexis Lincoln, NPGerontology Nurse Practitioner1326629775
  2. Nehad Soloman, M.D.Rheumatology Physician1356302962

Verify John R. Tesser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 11285
    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

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21% more Medicare Part D claims than the average rheumatology physician in 2024

2,389 Medicare Part D claims for 512 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. John Tesser2,389
  2. Specialty average1,978

Most prescribed

  1. Methotrexate334 claims
  2. Prednisone297 claims
  3. Hydroxychloroquine Sulfate196 claims
  4. Alendronate Sodium117 claims
  5. Leucovorin Calcium112 claims
  6. Duloxetine Hcl94 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): 99.2 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. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%99.0
  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: $91,925.51

254 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Tesser$91,926
  2. Specialty average$8,538

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. Arizona Arthritis And Rheumatology Associates P CPhoenix, AZ

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

Rheumatology Physician providers in Arizona

There are 117 rheumatology physician records in Arizona.

Other rheumatology physician records in Arizona

  1. Orwah Al-Khalili, MDPeoria, AZ1457666026
  2. Amer Al-Khoudari, M.D.Chandler, AZ1013036516
  3. Waseem Allabban, MDChandler, AZ1972704427
  4. Mona Amin, D.O.Glendale, AZ1740476217
  5. Madhu Arora, MDYuma, AZ1497702484
  6. Fawad Aslam, MBBSScottsdale, AZ1669636114
  7. Jeanne Attrep, M.D.Phoenix, AZ1710078209
  8. Aleix Bazzi, M.D.Yuma, AZ1023059508
  9. Ralph Bennett, MDMesa, AZ1366433161
  10. Laurie Bergstrom, MDTucson, AZ1972694123

Common questions

What is John R. Tesser, MD's NPI number?

John R. Tesser, MD's National Provider Identifier (NPI) is 1427049220, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John R. Tesser, MD located?

The NPPES record lists a practice address at 9520 W Palm LN Ste 220, Phoenix, AZ, 85037. Phone: (480) 443-8400. Providers update this record themselves, so call before visiting.

How can I verify John R. Tesser, MD's license?

NPPES lists Arizona license number 11285, 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 John R. Tesser, MD prescribe under Medicare Part D?

In 2024, John R. Tesser, MD had 2,389 Medicare Part D claims for 512 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is John R. Tesser, MD's MIPS final score?

The 2023 MIPS final score is 99.2 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.