Timothy P. Baker, MD
Family Medicine Physician · Chandler, AZ
Timothy P. Baker, MD is a family medicine physician with a practice address in Chandler, Arizona, and NPI 1821079682, issued on Nov 9, 2005. Check the license (Arizona 20390, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Timothy P. Baker
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20390 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1455 W Chandler Blvd, Chandler, AZ 85224
- Phone
- (480) 899-2900
- Enumerated
- Nov 9, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (480) 899-0681
- Medicare enrollment
- Enrolled (PECOS I20060308000622); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 1989
- Entity
- Type 1 · individual
Also registered at 1455 W Chandler Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- David Gannon, MDFamily Medicine Physician1477534816
- Maria Gomez, DOHealth Educator1801481577
- Mitchell Heide, PAPhysician Assistant1073023248
- Marlou Heiland, M.D.Urology Physician1730180431
Verify Timothy P. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 20390Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.1 times the Medicare Part D claims of the average family medicine physician in 2024
11,046 Medicare Part D claims for 981 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 197 claims were for opioids.
Most prescribed
- Atorvastatin Calcium894 claims
- Levothyroxine Sodium569 claims
- Losartan Potassium516 claims
- Amlodipine Besylate494 claims
- Simvastatin320 claims
- Rosuvastatin Calcium319 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: $1,404.57
81 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
Bills Medicare through one group practice
- Access Wellness ResourcesScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
98 family medicine physician records list a practice address in Chandler
They are 98 of the 5,497 NPPES records with a practice address in Chandler, and 3,119 family medicine physician records in Arizona.
All 98 in Chandler → All 3,119 in Arizona → Every provider in Chandler →
Other family medicine physician records in Arizona
- Muhammad Aamer, M.D.Yuma, AZ1437574720
- Ndidi Abara, M.D.Yuma, AZ1295115145
- Steven Abdelmalak, MDScottsdale, AZ1205092806
- Daniel Abelev, MDPhoenix, AZ1417573163
- Lindsey Abeyta, FNPTucson, AZ1043027857
- Modupeola Abiodun, M.D.Chandler, AZ1225326853
- Sara Abolmolouk, MDTucson, AZ1497043715
- Ahmed Abouzeid, MDGlendale, AZ1871619601
- Edward Abraham, M.D.Phoenix, AZ1144593211
- Rebecca Abraham, M.D.Surprise, AZ1437273323
Common questions
What is Timothy P. Baker, MD's NPI number?
Timothy P. Baker, MD's National Provider Identifier (NPI) is 1821079682, issued on Nov 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Timothy P. Baker, MD located?
The NPPES record lists a practice address at 1455 W Chandler Blvd, Chandler, AZ, 85224. Phone: (480) 899-2900. Providers update this record themselves, so call before visiting.
How can I verify Timothy P. Baker, MD's license?
NPPES lists Arizona license number 20390, 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 Timothy P. Baker, MD prescribe under Medicare Part D?
In 2024, Timothy P. Baker, MD had 11,046 Medicare Part D claims for 981 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.