NPPES file of Aug 9, 2026

Brian S. Chasin, MD

Infectious Disease Physician · Phoenix, AZ

Brian S. Chasin, MD is an infectious disease physician with a practice address in Phoenix, Arizona, and NPI 1952329328, issued on Jul 17, 2006. Check the license (Arizona 35402, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952329328
Name
Brian S. Chasin
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
35402 AZ
244048 NY
Self-reported in NPPES; status is on the state search
Practice location
3411 N 5TH Ave Ste 209, Phoenix, AZ 85013
Phone
(602) 789-0344
Enumerated
Jul 17, 2006
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(602) 789-8389
Medicaid ID
116179 AZ
Medicare enrollment
Enrolled (PECOS I20061204000507); accepts Medicare assignment
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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8 nearest infectious disease physician records → All 176 in Arizona → Look up another NPI →

Also registered at 3411 N 5TH Ave Ste 209

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

  1. Melissa Hoover, PAPhysician Assistant1992789135
  2. Jasmine Kelley, MDInternal Medicine Physician1568444644
  3. Reecha Madan, MDGeriatric Medicine (Family Medicine) Physician1770746554
  4. Julie Mays, PAPhysician Assistant1164463568
  5. Gregory Scallon, P.A.Physician Assistant1891722302
  6. Liviu Vladoianu, ACNPC-AGAcute Care Nurse Practitioner1649797218

Verify Brian S. Chasin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 35402    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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Bills Medicare through one group practice

  1. Tucson Physician Group Holdings LLCTucson, AZ

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

Brian S. Chasin among 176 infectious disease physician records in Arizona

Brian S. Chasin, MD is one of 176 infectious disease physician records with a practice address in Arizona. 81% 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 10% of them.

  • NPI issued2006 · 10% of these records are older, 57% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2001 · median 2001 among the 122 with a school on file
  • Record last updated2018 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Arizona

There are 176 infectious disease physician records in Arizona.

All 176 in Arizona → Every provider in Phoenix → Infectious Disease Physician nationwide →

The 8 infectious disease physician records with the nearest ZIP codes

  1. Richard Blinkhorn, M.D.Phoenix, AZ 850131568575827
  2. Vipul Ganatra, M.D.Phoenix, AZ 850131093769689
  3. Sami HoshiPhoenix, AZ 850131699187807
  4. Daniel Marino, M.D.Phoenix, AZ 850131396703757
  5. Mirella Mircescu, M.D.Phoenix, AZ 850131750596789
  6. Barbara Mora Gonzalez, MDPhoenix, AZ 850131003589029
  7. Wesley Shealey, MDPhoenix, AZ 850131912054867
  8. Tatyana Shekhel, D.O.Phoenix, AZ 850131376796599

Common questions

What is Brian S. Chasin, MD's NPI number?

Brian S. Chasin, MD's National Provider Identifier (NPI) is 1952329328, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Brian S. Chasin, MD located?

The NPPES record lists a practice address at 3411 N 5TH Ave Ste 209, Phoenix, AZ, 85013. Phone: (602) 789-0344. Providers update this record themselves, so call before visiting.

How can I verify Brian S. Chasin, MD's license?

NPPES lists Arizona license number 35402, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.