Thomas Allan Ritchie, M.D.
General Practice Physician · Paradise Valley, AZ
Thomas Allan Ritchie, M.D. is a general practice physician with a practice address in Paradise Valley, Arizona, and NPI 1700030251, issued on Nov 11, 2008. Check the license (Arizona 16675, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Allan Ritchie
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- 16675 AZ
036072223 IL
03607223 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5525 E Lincoln Dr, Paradise Valley, AZ 85253
- Phone
- (928) 300-9886
- Enumerated
- Nov 11, 2008
- Record last updated
- May 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 228 in Arizona → Look up another NPI →
Also registered at 5525 E Lincoln Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Collins, M.D.Orthopaedic Surgery Physician1740276583
Verify Thomas Allan Ritchie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 16675Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average general practice physician in 2024
23 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
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.
Thomas Allan Ritchie among 228 general practice physician records in Arizona
Thomas Allan Ritchie, M.D. is one of 228 general practice physician records with a practice address in Arizona. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 41% of them.
- NPI issued2008 · 41% of these records are older, 54% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 24% of these records are
- Record last updated2016 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 general practice physician records list a practice address in Paradise Valley
They are 2 of the 185 NPPES records with a practice address in Paradise Valley, and 228 general practice physician records in Arizona.
All 228 in Arizona → Every provider in Paradise Valley → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Thomas Kalos, D.O.Paradise Valley, AZ 852531922379437
- Martin Boxer, M.D.Scottsdale, AZ 852541538289046
- Amber Buell, MEScottsdale, AZ 852541861369597
- Siena FuentevillaScottsdale, AZ 852541306719612
- Joseph Guida, M.D.Scottsdale, AZ 852551861569386
- William Hall, M.D.Scottsdale, AZ 852511487776803
- Vincent Marino, M.D.Scottsdale, AZ 852511285690032
- Gerald JosephChandler, AZ 852491235758129
Common questions
What is Thomas Allan Ritchie, M.D.'s NPI number?
Thomas Allan Ritchie, M.D.'s National Provider Identifier (NPI) is 1700030251, issued on Nov 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Allan Ritchie, M.D. located?
The NPPES record lists a practice address at 5525 E Lincoln Dr, Paradise Valley, AZ, 85253. Phone: (928) 300-9886. Providers update this record themselves, so call before visiting.
How can I verify Thomas Allan Ritchie, M.D.'s license?
NPPES lists Arizona license number 16675, 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 Thomas Allan Ritchie, M.D. prescribe under Medicare Part D?
In 2024, Thomas Allan Ritchie, M.D. had 23 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.