Diane C. Downing, MD
Family Medicine Physician · Green Valley, AZ
Diane C. Downing, MD is a family medicine physician with a practice address in Green Valley, Arizona, and NPI 1366497786, issued on May 24, 2006. Check the license (Arizona 33052, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Diane C. Downing
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 33052 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 275 W Continental RD, Green Valley, AZ 85614
- Phone
- (520) 625-3691
- Enumerated
- May 24, 2006
- Record last updated
- Aug 30, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (520) 547-3994
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,119 in Arizona → Look up another NPI →
Verify Diane C. Downing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 33052Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
171 Medicare Part D claims for 39 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium21 claims
- Levothyroxine Sodium13 claims
- Mounjaro13 claims
- Repatha Sureclick12 claims
- Rosuvastatin Calcium12 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.
Diane C. Downing among 3,119 family medicine physician records in Arizona
Diane C. Downing, 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 updated2012 · 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).
19 family medicine physician records list a practice address in Green Valley
They are 19 of the 307 NPPES records with a practice address in Green Valley, and 3,119 family medicine physician records in Arizona.
All 3,119 in Arizona → Every provider in Green Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Michael Ammann, DOGreen Valley, AZ 856141932264843
- Marie Benitez, MDGreen Valley, AZ 856141154303436
- Robert Brick, MDGreen Valley, AZ 856141780666065
- Laura Brown, MDGreen Valley, AZ 856141538252424
- Jimmy Emery, M.D.Green Valley, AZ 856141295884336
- Steven Geise, DOGreen Valley, AZ 856141972571602
- Edward Holubowitch, M.D.Green Valley, AZ 856141427026319
- Rodolfo Jimenez, D.O.Green Valley, AZ 856141013910751
Common questions
What is Diane C. Downing, MD's NPI number?
Diane C. Downing, MD's National Provider Identifier (NPI) is 1366497786, issued on May 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane C. Downing, MD located?
The NPPES record lists a practice address at 275 W Continental RD, Green Valley, AZ, 85614. Phone: (520) 625-3691. Providers update this record themselves, so call before visiting.
How can I verify Diane C. Downing, MD's license?
NPPES lists Arizona license number 33052, 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 Diane C. Downing, MD prescribe under Medicare Part D?
In 2024, Diane C. Downing, MD had 171 Medicare Part D claims for 39 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.