Gillian Reed Woodruff, MD
Internal Medicine Physician · Parker, AZ
Gillian Reed Woodruff, MD is an internal medicine physician with a practice address in Parker, Arizona, and NPI 1598394496, issued on Apr 3, 2020. Check the license on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gillian Reed Woodruff
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A192204 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12033 Agency RD, Parker, AZ 85344
- Phone
- (928) 669-2137
- Enumerated
- Apr 3, 2020
- Record last updated
- Jan 12, 2026
- Fax
- (928) 669-3131
- Medicare enrollment
- Enrolled (PECOS I20250721000104); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 12033 Agency RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Diane Adams, DOInternal Medicine Physician1073520474
- Sheila AdamsRegistered Nurse1336537620
- Folaremi Adeyemo, PHARMDPharmacist1093363020
- Cynthia AitkenRegistered Nurse1184176687
- Joanne Ajero-Ehlers, RNRegistered Nurse1912110420
- Ezzaddin Al Wahsh, M.D.Hospitalist Physician1033525456
Verify Gillian Reed Woodruff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
22% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,477 Medicare Part D claims for 428 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 58 claims were for opioids.
Most prescribed
- Atorvastatin Calcium174 claims
- Amlodipine Besylate131 claims
- Rosuvastatin Calcium102 claims
- Levothyroxine Sodium87 claims
- Losartan Potassium76 claims
- Lisinopril69 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.
Bills Medicare through 2 group practices
- Dhhs Ihs Phoenix AreaParker, AZ
- Dhhs Ihs Phoenix AreaPolacca, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gillian Reed Woodruff among 2,853 internal medicine physician records in Arizona
Gillian Reed Woodruff, MD is one of 2,853 internal 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 2020, is newer than 81% of them.
- NPI issued2020 · 81% of these records are older, 16% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2020 · median 2003 among the 1,643 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 internal medicine physician records list a practice address in Parker
They are 5 of the 352 NPPES records with a practice address in Parker, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Parker → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Diane Adams, DOParker, AZ 853441073520474
- Virgilio Cantu, MDParker, AZ 853441437184686
- Kevin Klopfenstein, M.D.Parker, AZ 853441538129358
- Akhil Rahman, MDParker, AZ 853441639326705
- Ranilo Asuncion, MDPeoria, AZ 853451639122815
- Elena Cho, DOPeoria, AZ 853451598394298
- James Evans, MDPeoria, AZ 853451669560389
- Navkaran Girgla, M.D.Peoria, AZ 853451225692346
Common questions
What is Gillian Reed Woodruff, MD's NPI number?
Gillian Reed Woodruff, MD's National Provider Identifier (NPI) is 1598394496, issued on Apr 3, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Gillian Reed Woodruff, MD located?
The NPPES record lists a practice address at 12033 Agency RD, Parker, AZ, 85344. Phone: (928) 669-2137. Providers update this record themselves, so call before visiting.
How can I verify Gillian Reed Woodruff, MD's license?
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 Gillian Reed Woodruff, MD prescribe under Medicare Part D?
In 2024, Gillian Reed Woodruff, MD had 2,477 Medicare Part D claims for 428 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.