Mary Grace Santos, PA-C
Physician Assistant · Los Angeles, CA
Mary Grace Santos, PA-C is a physician assistant with a practice address in Los Angeles, California, and NPI 1538445945, issued on Oct 30, 2011. Check the license (California PA20157, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Grace Santos
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA20157 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5701 S Hoover St, Los Angeles, CA 90037
- Phone
- (323) 541-1600
- Enumerated
- Oct 30, 2011
- Record last updated
- Oct 30, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (323) 541-1661
- Medicare enrollment
- Enrolled (PECOS I20130625000326); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 5701 S Hoover St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Katherine Grubiak, RDRegistered Dietitian1316153810
- Farid Hassanpour, D.O.Pediatrics Physician1598010308
- Patricia Howard, PAMedical Physician Assistant1063687523
Verify Mary Grace Santos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA20157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average physician assistant in 2024
446 Medicare Part D claims for 112 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium45 claims
- Metformin Hcl43 claims
- Lisinopril35 claims
- Amlodipine Besylate24 claims
- Simvastatin23 claims
- Alendronate Sodium20 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 one group practice
- East Valley Community Health Center, Inc.Pomona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
935 physician assistant records list a practice address in Los Angeles
They are 935 of the 69,537 NPPES records with a practice address in Los Angeles, and 14,451 physician assistant records in California.
All 935 in Los Angeles → All 14,451 in California → Every provider in Los Angeles →
Other physician assistant records in California
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- Ramina Abbasi, PA-CSignal Hill, CA1093448300
- Ariel Abbott, PA-CStockton, CA1780334342
- Barrie Abbott, PA-CAnza, CA1861602575
- Elizabeth Abbott, PA-CSan Diego, CA1437540762
- Terri Abbott, P.A.La Jolla, CA1811165566
- Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
Common questions
What is Mary Grace Santos, PA-C's NPI number?
Mary Grace Santos, PA-C's National Provider Identifier (NPI) is 1538445945, issued on Oct 30, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mary Grace Santos, PA-C located?
The NPPES record lists a practice address at 5701 S Hoover St, Los Angeles, CA, 90037. Phone: (323) 541-1600. Providers update this record themselves, so call before visiting.
How can I verify Mary Grace Santos, PA-C's license?
NPPES lists California license number PA20157, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Grace Santos, PA-C prescribe under Medicare Part D?
In 2024, Mary Grace Santos, PA-C had 446 Medicare Part D claims for 112 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.