William Smalstig, RNP
Acute Care Nurse Practitioner · Tucson, AZ
William Smalstig, RNP is an acute care nurse practitioner with a practice address in Tucson, Arizona, and NPI 1992436802, issued on Jun 21, 2022. Check the license (Arizona 279791, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Smalstig
- Credential
- RNP
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 279791 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1625 N Campbell Ave, Tucson, AZ 85719
- Phone
- (520) 694-0111
- Enumerated
- Jun 21, 2022
- Record last updated
- Sep 29, 2022
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 645 in Arizona → Look up another NPI →
Also registered at 1625 N Campbell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristopher Abbate, MDInternal Medicine Physician1184112401
- Michelle Abbate, MDObstetrics & Gynecology Physician1184111940
- Abdelrahman AbdallaDiagnostic Radiology Physician1457139339
- Jonathan Abdo, MDStudent in an Organized Health Care Education/Training Program1811783814
- Kalkidan Abebe, MDInternal Medicine Physician1508435504
- Sameer Aboufadel, DO, MPHEmergency Medicine Physician1639063431
Verify William Smalstig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 279791Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
33 Medicare Part D claims for 21 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Oxycodone Hcl13 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): 97.6 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
William Smalstig among 645 acute care nurse practitioner records in Arizona
William Smalstig, RNP is one of 645 acute care nurse practitioner records with a practice address in Arizona. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 75% of them.
- NPI issued2022 · 75% of these records are older, 18% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2022 · 34% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Arizona
There are 645 acute care nurse practitioner records in Arizona.
All 645 in Arizona → Every provider in Tucson → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Jonathan Alvarez, NURSE PRACTITIONERTucson, AZ 857191164075545
- Colleen Aouane, NPTucson, AZ 857191457002339
- Susan Burns, NURSE PRACTITIONERTucson, AZ 857191144603283
- Suzannah Gallaher, RNTucson, AZ 857191144832304
- Jonica Kleving, ACNPTucson, AZ 857191467194258
- Barbara Mayer, NPTucson, AZ 857191447879267
- Amy NapierTucson, AZ 857191386300879
- Guadalupe Ortega, APRN,ACNP-BC, FNP-BCTucson, AZ 857191639539513
Common questions
What is William Smalstig, RNP's NPI number?
William Smalstig, RNP's National Provider Identifier (NPI) is 1992436802, issued on Jun 21, 2022. An NPI identifies a provider in billing; it is not a license.
Where is William Smalstig, RNP located?
The NPPES record lists a practice address at 1625 N Campbell Ave, Tucson, AZ, 85719. Phone: (520) 694-0111. Providers update this record themselves, so call before visiting.
How can I verify William Smalstig, RNP's license?
NPPES lists Arizona license number 279791, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does William Smalstig, RNP prescribe under Medicare Part D?
In 2024, William Smalstig, RNP had 33 Medicare Part D claims for 21 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.
What is William Smalstig, RNP's MIPS final score?
The 2023 MIPS final score is 97.6 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.