Lillia Rachel Siegel, PA-C
Physician Assistant · Chandler, AZ
Lillia Rachel Siegel, PA-C is a physician assistant with a practice address in Chandler, Arizona, and NPI 1457052565, issued on Mar 15, 2023. Check the license (Arizona 9731, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lillia Rachel Siegel
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 9731 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 875 S Dobson RD, Chandler, AZ 85224
- Phone
- (480) 899-9800
- Enumerated
- Mar 15, 2023
- Record last updated
- Nov 19, 2025
- Fax
- (480) 899-2994
- Medicare enrollment
- Enrolled (PECOS I20230918001806); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,666 in Arizona → Look up another NPI →
Also registered at 875 S Dobson RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- George Bracher, M.D.Gastroenterology Physician1669444006
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- Jody Krager, CRNACertified Registered Nurse Anesthetist1528309697
Verify Lillia Rachel Siegel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 9731Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average physician assistant in 2024
1,050 Medicare Part D claims for 158 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium88 claims
- Gabapentin44 claims
- Metformin Hcl37 claims
- Lisinopril36 claims
- Hydrochlorothiazide28 claims
- Albuterol Sulfate Hfa27 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
- Mountain Park Health CenterPhoenix, AZ
- Southeast Valley Gastroenterology Consultants, P.C.Chandler, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lillia Rachel Siegel among 3,666 physician assistant records in Arizona
Lillia Rachel Siegel, PA-C is one of 3,666 physician assistant records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 77% of them.
- NPI issued2023 · 77% of these records are older, 17% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2023 · median 2018 among the 2,207 with a school on file
- Record last updated2025 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
148 physician assistant records list a practice address in Chandler
They are 148 of the 5,497 NPPES records with a practice address in Chandler, and 3,666 physician assistant records in Arizona.
All 3,666 in Arizona → Every provider in Chandler → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Joan Altman, PACChandler, AZ 852241134239080
- Molly Cerniglia, PAChandler, AZ 852241679578991
- Jennifer Dechant, P.A.Chandler, AZ 852241578500179
- Sylvia Dory, PAChandler, AZ 852241053346650
- Jonathan Giali, P.A.Chandler, AZ 852241114972122
- Tina Horton, PA-CChandler, AZ 852241467456418
- George Hutson, PACChandler, AZ 852241558456756
- James Jarvise, P.A.-C.Chandler, AZ 852241316940356
Common questions
What is Lillia Rachel Siegel, PA-C's NPI number?
Lillia Rachel Siegel, PA-C's National Provider Identifier (NPI) is 1457052565, issued on Mar 15, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Lillia Rachel Siegel, PA-C located?
The NPPES record lists a practice address at 875 S Dobson RD, Chandler, AZ, 85224. Phone: (480) 899-9800. Providers update this record themselves, so call before visiting.
How can I verify Lillia Rachel Siegel, PA-C's license?
NPPES lists Arizona license number 9731, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Lillia Rachel Siegel, PA-C prescribe under Medicare Part D?
In 2024, Lillia Rachel Siegel, PA-C had 1,050 Medicare Part D claims for 158 beneficiaries; the average among physician assistant prescribers was 830. 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.