Theresa Chu, MD
Obstetrics & Gynecology Physician · Gilbert, AZ
Theresa Chu, MD is an obstetrics & gynecology physician with a practice address in Gilbert, Arizona, and NPI 1700103371, issued on Apr 22, 2010. Check the license (Arizona 48461, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Theresa Chu
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 48461 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3420 S Mercy RD, Gilbert, AZ 85297
- Phone
- (480) 895-9555
- Enumerated
- Apr 22, 2010
- Record last updated
- Jul 21, 2022
- Fax
- (480) 895-9494
- Medicaid ID
- 933955 AZ
- Medicare enrollment
- Enrolled (PECOS I20140929002048); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 803 in Arizona → Look up another NPI →
Also registered at 3420 S Mercy RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Theresa Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 48461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
49 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol13 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: $332.57
16 payments; by number, the most common kind was food and beverage; the largest payer was Organon Llc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Arizona OB Gyn Affiliates PCChandler, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Theresa Chu among 803 obstetrics & gynecology physician records in Arizona
Theresa Chu, MD is one of 803 obstetrics & gynecology physician records with a practice address in Arizona. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.
- NPI issued2010 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2010 · median 2005 among the 477 with a school on file
- Record last updated2022 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Arizona
There are 803 obstetrics & gynecology physician records in Arizona.
All 803 in Arizona → Every provider in Gilbert → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Erum Azhar, M.DGilbert, AZ 852971013103738
- Phillip Garza, M.D.Gilbert, AZ 852971932335890
- Sara Giali, DOGilbert, AZ 852971538134663
- Lakshmimalini Govindan, MDGilbert, AZ 852971689839391
- Sheetal Kale, MDGilbert, AZ 852971073648549
- Namita Kothari, MDGilbert, AZ 852971700957594
- Clinton Leonard, MDGilbert, AZ 852971770575920
- Christopher Murphy, M.D.Gilbert, AZ 852971215900584
Common questions
What is Theresa Chu, MD's NPI number?
Theresa Chu, MD's National Provider Identifier (NPI) is 1700103371, issued on Apr 22, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Theresa Chu, MD located?
The NPPES record lists a practice address at 3420 S Mercy RD, Gilbert, AZ, 85297. Phone: (480) 895-9555. Providers update this record themselves, so call before visiting.
How can I verify Theresa Chu, MD's license?
NPPES lists Arizona license number 48461, 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 Theresa Chu, MD prescribe under Medicare Part D?
In 2024, Theresa Chu, MD had 49 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.