NPPES file of Aug 9, 2026

Sean Donovan Buck, MD

Family Medicine Physician · Phoenix, AZ

Sean Donovan Buck, MD is a family medicine physician with a practice address in Phoenix, Arizona, and NPI 1831695451, issued on Apr 3, 2018. Check the license (Arizona 73665, 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
1831695451
Name
Sean Donovan Buck
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
73665 AZ
35C.001517 OH
DR0062867 CO
25577 NV
45899 OK
and 2 more
Self-reported in NPPES; status is on the state search
Practice location
4602 E University Dr Ste 150, Phoenix, AZ 85034
Phone
(480) 588-0348
Enumerated
Apr 3, 2018
Record last updated
Oct 30, 2025
Medicare enrollment
Enrolled (PECOS I20210604000444); accepts Medicare assignment
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 4602 E University Dr Ste 150

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

  1. Angela CammarataFamily Nurse Practitioner1316424732
  2. Matthew Croppi, PAPhysician Assistant1336668482
  3. Rita Peters, APRNAdult Health Nurse Practitioner1013482454

Verify Sean Donovan Buck in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 73665
    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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92% fewer Medicare Part D claims than the average family medicine physician in 2024

282 Medicare Part D claims for 77 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 52 claims were for opioids.

  1. Sean Buck282
  2. Specialty average3,544

Most prescribed

  1. Buprenorphine25 claims
  2. Atorvastatin Calcium16 claims
  3. Buprenorphine-Naloxone16 claims
  4. Hydrocodone-Acetaminophen15 claims
  5. Duloxetine Hcl12 claims
  6. Lisinopril12 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.

Bills Medicare through 3 group practices

  1. Hospital Medicine Services OF Colorado, LLCEnglewood, CO
  2. Lincoln Community HospitalHugo, CO
  3. Warren Clinic IncTulsa, OK

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

Sean Donovan Buck among 3,119 family medicine physician records in Arizona

Sean Donovan Buck, MD 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 2018, is newer than 81% of them.

  • NPI issued2018 · 81% of these records are older, 17% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2018 · median 2006 among the 1,775 with a school on file
  • Record last updated2025 · 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).

649 family medicine physician records list a practice address in Phoenix

They are 649 of the 31,399 NPPES records with a practice address in Phoenix, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. John DominguezPhoenix, AZ 850341588897359
  2. Jennifer Hartmark Hill, M.D.Phoenix, AZ 850341538133111
  3. Susan McCartan, M.D.Phoenix, AZ 850341790713576
  4. Chukwuemeka Oranyeli, MDPhoenix, AZ 850341720192727
  5. Ramon Alba, D.O.Phoenix, AZ 850331962422436
  6. Richard Alm, M.D.Phoenix, AZ 850351437138922
  7. Mark Friedman, MDPhoenix, AZ 850351053310599
  8. Susan Greger, M.D.Phoenix, AZ 850331760447387

Common questions

What is Sean Donovan Buck, MD's NPI number?

Sean Donovan Buck, MD's National Provider Identifier (NPI) is 1831695451, issued on Apr 3, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Sean Donovan Buck, MD located?

The NPPES record lists a practice address at 4602 E University Dr Ste 150, Phoenix, AZ, 85034. Phone: (480) 588-0348. Providers update this record themselves, so call before visiting.

How can I verify Sean Donovan Buck, MD's license?

NPPES lists Arizona license number 73665, 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 Sean Donovan Buck, MD prescribe under Medicare Part D?

In 2024, Sean Donovan Buck, MD had 282 Medicare Part D claims for 77 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.