Debra L. Walshaw, M.D.
Internal Medicine Physician · Tucson, AZ
Debra L. Walshaw, M.D. is an internal medicine physician with a practice address in Tucson, Arizona, and NPI 1821100694, issued on Aug 31, 2006. Check the license (Arizona 28605, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Debra L. Walshaw
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 28605 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3945 E Paradise Falls Drive, Tucson, AZ 85712
- Phone
- (520) 615-6200
- Enumerated
- Aug 31, 2006
- Record last updated
- Oct 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (520) 615-6255
- Medicaid ID
- 597809 AZ
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 3945 E Paradise Falls Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bridget Doherty, NPFamily Nurse Practitioner1952382715
- George Haloftis, D.O.Internal Medicine Physician1740277268
Verify Debra L. Walshaw in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 28605Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average internal medicine physician in 2024
4,107 Medicare Part D claims for 132 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 41 claims were for opioids.
Most prescribed
- Eliquis258 claims
- Atorvastatin Calcium224 claims
- Trulicity155 claims
- Levothyroxine Sodium142 claims
- Lisinopril134 claims
- Gabapentin115 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.
Debra L. Walshaw among 2,853 internal medicine physician records in Arizona
Debra L. Walshaw, M.D. is one of 2,853 internal 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 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2015 · 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 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
651 internal medicine physician records list a practice address in Tucson
They are 651 of the 18,788 NPPES records with a practice address in Tucson, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Tucson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Abraham, MDTucson, AZ 857121669468195
- Sheela Bhat, M.D.Tucson, AZ 857121598752008
- Muralikrishna Bhat, M.D.Tucson, AZ 857121114914637
- Douglas Bischoff, M.D.Tucson, AZ 857121821085333
- George Haloftis, D.O.Tucson, AZ 857121740277268
- Thomas Headlee, M.D.Tucson, AZ 857121194711630
- Kathleen Iveson, M.D.Tucson, AZ 857121720074263
- Gerome Kantor, MDTucson, AZ 857121407850290
Common questions
What is Debra L. Walshaw, M.D.'s NPI number?
Debra L. Walshaw, M.D.'s National Provider Identifier (NPI) is 1821100694, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Debra L. Walshaw, M.D. located?
The NPPES record lists a practice address at 3945 E Paradise Falls Drive, Tucson, AZ, 85712. Phone: (520) 615-6200. Providers update this record themselves, so call before visiting.
How can I verify Debra L. Walshaw, M.D.'s license?
NPPES lists Arizona license number 28605, 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 Debra L. Walshaw, M.D. prescribe under Medicare Part D?
In 2024, Debra L. Walshaw, M.D. had 4,107 Medicare Part D claims for 132 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.