John D. Marshall, MD
Family Medicine Physician · Phoenix, AZ
John D. Marshall, MD is a family medicine physician with a practice address in Phoenix, Arizona, and NPI 1780761916, issued on Nov 1, 2006. Check the license (Arizona 10961, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- John D. Marshall
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 10961 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3811 E Bell RD Ste 106, Phoenix, AZ 85032
- Phone
- (602) 482-6100
- Enumerated
- Nov 1, 2006
- Record last updated
- Sep 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (602) 992-6424
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Also registered at 3811 E Bell RD Ste 106
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Priyanka Costa Hennis, MDFamily Medicine Physician1346682291
Verify John D. Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 10961Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
400 Medicare Part D claims for 87 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 24 claims were for opioids.
Most prescribed
- Levothyroxine Sodium29 claims
- Amlodipine Besylate18 claims
- Atorvastatin Calcium18 claims
- Zolpidem Tartrate14 claims
- Prednisone13 claims
- Hydrocodone-Acetaminophen12 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: $40.18
1 payment: food and beverage; the largest payer was Tactile Systems Technology Inc. The 55,478 providers of this specialty with any payment received $902.55 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 D. Marshall among 3,119 family medicine physician records in Arizona
John D. Marshall, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2018 · 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.
All 3,119 in Arizona → Every provider in Phoenix → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Laura Adler, M.D.Phoenix, AZ 850321912986498
- Carolyn Barlow, D.O.Phoenix, AZ 850321740284397
- Lawrence Bence, M.D.Phoenix, AZ 850321194713628
- Richard Dobrusin, D.O.Phoenix, AZ 850321578533170
- Mitchell EdelsteinPhoenix, AZ 850321164422085
- Ronald Habros, MDPhoenix, AZ 850321467432567
- Luis Irizarry, MDPhoenix, AZ 850321487658175
- Paul Laven, DOPhoenix, AZ 850321396718102
Common questions
What is John D. Marshall, MD's NPI number?
John D. Marshall, MD's National Provider Identifier (NPI) is 1780761916, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John D. Marshall, MD located?
The NPPES record lists a practice address at 3811 E Bell RD Ste 106, Phoenix, AZ, 85032. Phone: (602) 482-6100. Providers update this record themselves, so call before visiting.
How can I verify John D. Marshall, MD's license?
NPPES lists Arizona license number 10961, 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 John D. Marshall, MD prescribe under Medicare Part D?
In 2024, John D. Marshall, MD had 400 Medicare Part D claims for 87 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.