John V. Deguzman, MD
Specialist · Phoenix, AZ
John V. Deguzman, MD is a specialist with a practice address in Phoenix, Arizona, and NPI 1558347153, issued on Dec 16, 2005. Check the license (Arizona 22208, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John V. Deguzman
- Credential
- MD
- Primary taxonomy
- Specialist 174400000X
- License number
- 22208 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 4400 N 32ND St, Phoenix, AZ 85018
- Phone
- (602) 258-4018
- Enumerated
- Dec 16, 2005
- Record last updated
- Jan 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest specialist records → All 747 in Arizona → Look up another NPI →
Also registered at 4400 N 32ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adrian Arya, MDSpecialist1477522340
- Barbara Backer, M.D.Internal Medicine Physician1134171374
- Bruce Bethancourt, M.D.Internal Medicine Physician1548252513
- Ann Bullington, MDOphthalmology Physician1225023369
- Robert Bullington, MDOphthalmology Physician1134114275
- Samuel Clark, MDFamily Medicine Physician1073506036
Verify John V. Deguzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 22208Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average specialist in 2024
55 Medicare Part D claims for 14 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 76% of claims.
Most prescribed
- Mounjaro32 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: $13,414.12
29 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
John V. Deguzman among 747 specialist records in Arizona
John V. Deguzman, MD is one of 747 specialist records with a practice address in Arizona. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 25% of these records are
- In the CMS Doctors and Clinicians fileNo · 16% of these records are
- Record last updated2008 · 83% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Arizona
There are 747 specialist records in Arizona.
All 747 in Arizona → Every provider in Phoenix → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Adrian Arya, MDPhoenix, AZ 850181477522340
- William Kamer, B.S.Phoenix, AZ 850181770616427
- Gene Meger, M.D.Phoenix, AZ 850181710068234
- Jeffrey Nebelsieck, MDPhoenix, AZ 850181396721965
- Linda SchlenkerPhoenix, AZ 850181912123332
- Jeffrey Taffet, MDPhoenix, AZ 850181699744052
- Jacqueline Marinelli, MS EDPhoenix, AZ 850171801150834
- Charles OkekePhoenix, AZ 850171053634097
Common questions
What is John V. Deguzman, MD's NPI number?
John V. Deguzman, MD's National Provider Identifier (NPI) is 1558347153, issued on Dec 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John V. Deguzman, MD located?
The NPPES record lists a practice address at 4400 N 32ND St, Phoenix, AZ, 85018. Phone: (602) 258-4018. Providers update this record themselves, so call before visiting.
How can I verify John V. Deguzman, MD's license?
NPPES lists Arizona license number 22208, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does John V. Deguzman, MD prescribe under Medicare Part D?
In 2024, John V. Deguzman, MD had 55 Medicare Part D claims for 14 beneficiaries; the average among specialist prescribers was 1,380. 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.