Mary Grace Santos, PA-C
- Part D claims, 2024
- 446
- Industry payments
- $16
- Affiliated sites
- 3
- Medical groups
- 2
- State license
- 1
- Practice address
- 1555 S Garey Ave, Pomona, CA 91766
- Practice phone
- Call (909) 620-8088
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
East Valley Community Health Center
FQHC - Satellite Clinic · Pomona, California
Find Mary Grace Santos' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mary Grace Santos is a physician assistant in Pomona, California
Mary Grace Santos practices at East Valley Community Health Center in Pomona, California.
Mary Grace Santos' NPI, 1538445945, was assigned on October 30, 2011. Mary Grace Santos holds California license PA20157.
- NPI
- 1538445945NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395984215
- NPI enumeration date
- October 30, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 620-8088
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Grace Santos practices at East Valley Community Health Center in Pomona, California
Mary Grace Santos' primary practice is East Valley Community Health Center, at 1555 S Garey Ave, Pomona, CA 91766 in Los Angeles County. The practice phone is (909) 620-8088.
- East Valley Community Health Center1555 S Garey Ave, Pomona, CA 91766 · Los Angeles CountyPhone(909) 620-8088
Source: Dmand AI Affiliation Data
Mary Grace Santos is affiliated with 3 sites of care and 2 medical groups
Mary Grace Santos' primary practice is East Valley Community Health Center in Pomona, California. The medical group on file is East Valley Community Health Center. Dmand AI also links Mary Grace Santos to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account. Mary Grace Santos' employer is on file too: a community health center (fqhc).
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mary Grace Santos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Grace Santos practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| East Valley Community Health Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Grace Santos is one of 11,482 physician assistants in California
Physician assistant is Mary Grace Santos' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Mary Grace Santos is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Mary Grace Santos
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Mary Grace Santos' patients have a median age of 37
Across all payers, Dmand AI patient panel data puts Mary Grace Santos' median patient age at 37, with 61% women.
Mary Grace Santos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women61%
- Men39%
Source: Dmand AI Patient Panel Data
Mary Grace Santos wrote 446 Medicare Part D claims in 2024
In 2024, Mary Grace Santos wrote 446 Medicare Part D claims for 112 patients. 89% of them were for generic drugs.
Mary Grace Santos' Part D claims by kind of drug, 2024
- Generic399 claims89%
- Brand-name and other47 claims11%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mary Grace Santos takes part in Medicare
Mary Grace Santos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Mary Grace Santos received $16 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mary Grace Santos from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $16.
Companies that paid Mary Grace Santos the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mary Grace Santos's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mary Grace Santos
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Grace Santos' NPI number?
Mary Grace Santos' NPI number is 1538445945. It was assigned on October 30, 2011, and it is active in the NPI Registry.
What does Mary Grace Santos specialize in?
Mary Grace Santos is a physician assistant in Pomona, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Mary Grace Santos practice?
Mary Grace Santos practices at 1555 S Garey Ave, Pomona, CA 91766. Mary Grace Santos' primary practice is East Valley Community Health Center in Pomona, California. Dmand AI also links Mary Grace Santos to 1 community health center, 1 group practice or clinic and 1 medical group.
What is Mary Grace Santos' office phone number?
The practice phone on file for Mary Grace Santos is (909) 620-8088.
What is Mary Grace Santos' medical license number?
Mary Grace Santos holds California license PA20157.
What medical group is Mary Grace Santos part of?
Mary Grace Santos is linked to East Valley Community Health Center. Dmand AI links Mary Grace Santos to 1 more medical group.
Does Mary Grace Santos accept Medicare?
Yes. CMS lists Mary Grace Santos as accepting Medicare assignment.
Has Mary Grace Santos received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Mary Grace Santos from 1 company from 2025 to 2025. The largest total came from Novo Nordisk Inc.
How long has Mary Grace Santos been practicing?
Mary Grace Santos graduated from medical school in 2008, 18 years ago.
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