Cristal Ann Sumerlin, PA-C
- Part D claims, 2024
- 1,621
- Industry payments
- $420
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 27994 Bradley Rd, Menifee, CA 92586
- Practice phone
- Call (951) 679-6467
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richard C. Lam, M.D., Inc.
Menifee, California
Find Cristal Sumerlin's 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.
Cristal Ann Sumerlin is a physician assistant in Menifee, California
Cristal Sumerlin practices at Richard C. Lam, M.D., Inc. in Menifee, California.
Cristal Sumerlin's NPI, 1932796869, was assigned on December 27, 2020.
- NPI
- 1932796869NPI Registry (opens in a new tab)
- NPI enumeration date
- December 27, 2020
- NPI status
- Active
- Practice phone
- (951) 679-6467
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Cristal Ann Sumerlin practices at Richard C. Lam, M.D., Inc. in Menifee, California
Cristal Sumerlin's primary practice is Richard C. Lam, M.D., Inc., at 27994 Bradley Rd, Menifee, CA 92586 in Riverside County. The practice phone is (951) 679-6467.
- Richard C. Lam, M.D., Inc.27994 Bradley Rd, Menifee, CA 92586 · Riverside CountyPhone(951) 679-6467
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Cristal Ann Sumerlin is affiliated with 2 sites of care and 1 medical group
Cristal Sumerlin's primary practice is Richard C. Lam, M.D., Inc. in Menifee, California. The medical group on file is Richard Lam MD. Dmand AI also links Cristal Sumerlin to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Cristal Ann Sumerlin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cristal Sumerlin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richard C. Lam, M.D., Inc. | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Cristal Ann Sumerlin is one of 2,381 physician assistants in California
Medical is Cristal Sumerlin's primary specialty in the NPI Registry, under taxonomy code 363AM0700X.
Specialties and state licenses
- Medical physician assistantPrimary
Physician assistants near Cristal Sumerlin
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
Cristal Ann Sumerlin's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Cristal Sumerlin's median patient age at 69, with 52% women.
Cristal Sumerlin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women52%
- Men47%
Source: Dmand AI Patient Panel Data
Cristal Ann Sumerlin wrote 1,621 Medicare Part D claims in 2024
In 2024, Cristal Sumerlin wrote 1,621 Medicare Part D claims for 385 patients. 83% of them were for generic drugs.
Cristal Sumerlin's Part D claims by kind of drug, 2024
- Generic1,350 claims83%
- Brand-name and other271 claims17%
Drug classes CMS tracks in Cristal Sumerlin's Part D claims, 2024
- Antibiotics6%90 of 1,621 claims
- Antipsychotics, patients 65 and over2%28 of 1,621 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Cristal Ann Sumerlin received $420 in industry payments in 2025
CMS Open Payments shows 21 general payments to Cristal Sumerlin from 9 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $127.
Companies that paid Cristal Sumerlin 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 Cristal Ann Sumerlin'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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 Cristal Ann Sumerlin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Cristal Ann Sumerlin's NPI number?
Cristal Ann Sumerlin's NPI number is 1932796869. It was assigned on December 27, 2020, and it is active in the NPI Registry.
What does Cristal Ann Sumerlin specialize in?
Cristal Ann Sumerlin is a physician assistant in Menifee, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Cristal Ann Sumerlin practice?
Cristal Sumerlin practices at 27994 Bradley Rd, Menifee, CA 92586. Cristal Sumerlin's primary practice is Richard C. Lam, M.D., Inc. in Menifee, California. Dmand AI also links Cristal Sumerlin to 1 group practice or clinic.
What is Cristal Ann Sumerlin's office phone number?
The practice phone on file for Cristal Sumerlin is (951) 679-6467.
What medical group is Cristal Ann Sumerlin part of?
Cristal Sumerlin is linked to Richard Lam MD.
Has Cristal Ann Sumerlin received payments from drug or device companies?
CMS Open Payments shows $420 in general payments to Cristal Sumerlin from 9 companies from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Cristal Ann Sumerlin been practicing?
Cristal Sumerlin's NPI was assigned in 2020.
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