NPPES file of Aug 9, 2026

Kelly Michelle Walthius, D.O.

Family Medicine Physician · Tucson, AZ

Kelly Michelle Walthius, D.O. is a family medicine physician with a practice address in Tucson, Arizona, and NPI 1922533322, issued on Apr 24, 2017. Check the license (Arizona 009999, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922533322
Name
Kelly Michelle Walthius
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
009999 AZ
S6090 TX
Self-reported in NPPES; status is on the state search
Practice location
2840 E Skyline Dr Ste 230, Tucson, AZ 85718
Phone
(520) 324-1214
Enumerated
Apr 24, 2017
Record last updated
Dec 1, 2023
Fax
(520) 324-1281
Medicare enrollment
Enrolled (PECOS I20230912000109); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2017
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 2840 E Skyline Dr Ste 230

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

  1. Peter Catalano, D.O.Family Medicine Physician1245288877
  2. Amy Clark, DOFamily Medicine Physician1649595174
  3. Megan Cristea, FNP-CFamily Nurse Practitioner1770135311
  4. Machelle Strand, FNPFamily Nurse Practitioner1336522283
  5. Lauren Trujillo, FNPFamily Nurse Practitioner1801474317
  6. Tanushree Yadwadkar, M.D.Internal Medicine Physician1871884288

Verify Kelly Michelle Walthius in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 009999
    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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61% fewer Medicare Part D claims than the average family medicine physician in 2024

1,371 Medicare Part D claims for 311 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Kelly Walthius1,371
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium92 claims
  2. Levothyroxine Sodium71 claims
  3. Lisinopril47 claims
  4. Losartan Potassium47 claims
  5. Amlodipine Besylate36 claims
  6. Rosuvastatin Calcium33 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.

Industry payments in 2024: $134.70

6 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, 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. Kelly Walthius$134.70
  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 one group practice

  1. Tmc Medical NetworkTucson, AZ

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

Kelly Michelle Walthius among 3,119 family medicine physician records in Arizona

Kelly Michelle Walthius, D.O. 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 2017, is newer than 78% of them.

  • NPI issued2017 · 78% of these records are older, 19% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2017 · median 2006 among the 1,775 with a school on file
  • Record last updated2023 · 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).

554 family medicine physician records list a practice address in Tucson

They are 554 of the 18,788 NPPES records with a practice address in Tucson, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. Margaret Brown, MDTucson, AZ 857181902887748
  2. Bethany Bruzzi, D.O.Tucson, AZ 857181477716942
  3. David Byron, M.D.Tucson, AZ 857181831400597
  4. Peter Catalano, D.O.Tucson, AZ 857181245288877
  5. Amy Clark, DOTucson, AZ 857181649595174
  6. Herbert Jalowsky, MDTucson, AZ 857181225085509
  7. Robert Johnson, M.D.Tucson, AZ 857181659495950
  8. Thili Kulatilake, M.D.Tucson, AZ 857181396846390

Common questions

What is Kelly Michelle Walthius, D.O.'s NPI number?

Kelly Michelle Walthius, D.O.'s National Provider Identifier (NPI) is 1922533322, issued on Apr 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Kelly Michelle Walthius, D.O. located?

The NPPES record lists a practice address at 2840 E Skyline Dr Ste 230, Tucson, AZ, 85718. Phone: (520) 324-1214. Providers update this record themselves, so call before visiting.

How can I verify Kelly Michelle Walthius, D.O.'s license?

NPPES lists Arizona license number 009999, 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 Kelly Michelle Walthius, D.O. prescribe under Medicare Part D?

In 2024, Kelly Michelle Walthius, D.O. had 1,371 Medicare Part D claims for 311 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.