Maria Ruiz, MD
Obstetrics & Gynecology Physician · Tucson, AZ
Maria Ruiz, MD is an obstetrics & gynecology physician with a practice address in Tucson, Arizona, and NPI 1447871728, issued on Apr 28, 2020. Check the license (Arizona 72557, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Maria Ruiz
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 72557 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 225 W Irvington RD, Tucson, AZ 85714
- Phone
- (520) 670-3909
- Enumerated
- Apr 28, 2020
- Record last updated
- Mar 19, 2025
- Fax
- (520) 309-2560
- Medicare enrollment
- Enrolled (PECOS I20240815004233); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 803 in Arizona → Look up another NPI →
Also registered at 225 W Irvington RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shruti Bala, MDObstetrics & Gynecology Physician1629464003
- Megan Brown, MD, MPHObstetrics & Gynecology Physician1720728843
- Annette Hernandez-Parkhurst, MDObstetrics & Gynecology Physician1477545788
- Jennifer Johnson, CNMAdvanced Practice Midwife1831545961
- Lili Jordan, MDObstetrics & Gynecology Physician1235192501
- Marnie Lamm, M.D.Family Medicine Physician1689992265
Verify Maria Ruiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 72557Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
41 Medicare Part D claims for 15 beneficiaries, against an average of 165 among the 28,733 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.
Bills Medicare through one group practice
- EL Rio Santa Cruz Neighborhood Health Center, Inc.Tucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maria Ruiz among 803 obstetrics & gynecology physician records in Arizona
Maria Ruiz, 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 2020, is newer than 91% of them.
- NPI issued2020 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2005 among the 477 with a school on file
- Record last updated2025 · 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 Tucson → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Shruti Bala, MDTucson, AZ 857141629464003
- Megan Brown, MD, MPHTucson, AZ 857141720728843
- Annette Hernandez-Parkhurst, MDTucson, AZ 857141477545788
- Lili Jordan, MDTucson, AZ 857141235192501
- Steven Rosenfeld, MDTucson, AZ 857141215915863
- Lynnell Gardner, MDTucson, AZ 857151043215049
- William Meyer, MDTucson, AZ 857131790876373
- Eugene Shields, M.D.Tucson, AZ 857131942625025
Common questions
What is Maria Ruiz, MD's NPI number?
Maria Ruiz, MD's National Provider Identifier (NPI) is 1447871728, issued on Apr 28, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Maria Ruiz, MD located?
The NPPES record lists a practice address at 225 W Irvington RD, Tucson, AZ, 85714. Phone: (520) 670-3909. Providers update this record themselves, so call before visiting.
How can I verify Maria Ruiz, MD's license?
NPPES lists Arizona license number 72557, 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 Maria Ruiz, MD prescribe under Medicare Part D?
In 2024, Maria Ruiz, MD had 41 Medicare Part D claims for 15 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.