NPPES file of Aug 9, 2026

Alyssa Kristine Stassi, D.O.

Surgical Critical Care Physician · Phoenix, AZ

Alyssa Kristine Stassi, D.O. is a surgical critical care physician with a practice address in Phoenix, Arizona, and NPI 1831464858, issued on Mar 9, 2012. Check the license (Arizona 007597, 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
1831464858
Name
Alyssa Kristine Stassi
Credential
D.O.
Primary taxonomy
Surgical Critical Care Physician 2086S0102X
License numbers
007597 AZ
34.011950 OH
Self-reported in NPPES; status is on the state search
Practice location
16601 N 40TH St Ste 204, Phoenix, AZ 85032
Phone
(602) 633-3721
Enumerated
Mar 9, 2012
Record last updated
Oct 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(602) 595-1127
Medicaid ID
406897 AZ
Medicare enrollment
Enrolled (PECOS I20180804000181); accepts Medicare assignment
Medical or professional school
Lake Erie College Of Osteopathic Medicine, Erie, 2012
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 16601 N 40TH St Ste 204

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

  1. Rima Ahmad, MBBSSurgery Physician1154760742
  2. Francis Ali-Osman, MDSurgical Critical Care Physician1447430491
  3. Charles Balcome, ACNPAcute Care Nurse Practitioner1376027557
  4. Varun Chakravorty, M.D.Surgery Physician1699027037
  5. Julie Dricken, MDColon & Rectal Surgery Physician1477848703
  6. Nasrin Ghalyaie, M.DColon & Rectal Surgery Physician1174820542

Verify Alyssa Kristine Stassi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 007597
    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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27% more Medicare Part D claims than the average surgical critical care physician in 2024

81 Medicare Part D claims for 38 beneficiaries, against an average of 64 among the 606 providers of this specialty who prescribed in Part D.

  1. Alyssa Stassi81
  2. Specialty average64

Most prescribed

  1. Ciprofloxacin Hcl11 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: $686.86

17 payments; by number, the most common kind was food and beverage; the largest payer was Kerecis Limited. The 1,092 providers of this specialty with any payment received $2,183.62 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alyssa Stassi$686.86
  2. Specialty average$2,183.62

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

Bills Medicare through 2 group practices

  1. Honorhealth AmbulatoryPhoenix, AZ
  2. Shirah Surgical PLLCPhoenix, AZ

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

Alyssa Kristine Stassi among 51 surgical critical care physician records in Arizona

Alyssa Kristine Stassi, D.O. is one of 51 surgical critical care physician records with a practice address in Arizona. 94% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 57% of them.

  • NPI issued2012 · 57% of these records are older, 35% newer
  • In a Medicare fileYes · 94% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated2012 · median 2009 among the 42 with a school on file
  • Record last updated2021 · 31% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086S0102X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Critical Care Physician providers in Arizona

There are 51 surgical critical care physician records in Arizona.

The 8 surgical critical care physician records with the nearest ZIP codes

  1. Hiba Abdel Aziz, MDPhoenix, AZ 850321104016336
  2. Francis Ali-Osman, MDPhoenix, AZ 850321447430491
  3. Qaali Hussein, M.D.Phoenix, AZ 850321194047134
  4. Meghann Kaiser, M.D.Phoenix, AZ 850321124204177
  5. Hoang Lim, D.O.Phoenix, AZ 850321891012225
  6. Alicia Mangram, MDPhoenix, AZ 850321972575504
  7. Adam Mina, DOPhoenix, AZ 850321053705459
  8. Tiffany Nguyen, MDPhoenix, AZ 850321861998213

Common questions

What is Alyssa Kristine Stassi, D.O.'s NPI number?

Alyssa Kristine Stassi, D.O.'s National Provider Identifier (NPI) is 1831464858, issued on Mar 9, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Kristine Stassi, D.O. located?

The NPPES record lists a practice address at 16601 N 40TH St Ste 204, Phoenix, AZ, 85032. Phone: (602) 633-3721. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Kristine Stassi, D.O.'s license?

NPPES lists Arizona license number 007597, 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 Alyssa Kristine Stassi, D.O. prescribe under Medicare Part D?

In 2024, Alyssa Kristine Stassi, D.O. had 81 Medicare Part D claims for 38 beneficiaries; the average among surgical critical care physician prescribers was 64. 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.