Corey Merrill
- Medicare patients, 2026
- 340
- Part D claims, 2026
- 224
- Hospital affiliations
- 1
- Industry payments
- $23
- Medical groups
- 4
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Corey Merrill'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.
Corey Merrill is a physician assistant in San Diego, California
Corey Merrill practices at UCSD Hillcrest Medical Center in San Diego, California.
Corey Merrill's NPI, 1386032308, was assigned on December 29, 2014.
- NPI
- 1386032308NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234455171
- NPI enumeration date
- December 29, 2014
- NPI status
- Active
- Offers telehealth
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Corey Merrill practices at UCSD Hillcrest Medical Center in San Diego, California
Corey Merrill's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Corey Merrill is affiliated with 3 sites of care and 4 medical groups
Corey Merrill's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Corey Merrill is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Corey Merrill to 3 more medical groups and 1 group practice or clinic, each 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 Corey Merrill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Corey Merrill practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Corey Merrill is one of 11,482 physician assistants in California
Physician assistant is Corey Merrill's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Corey Merrill
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
Corey Merrill treated 340 Medicare patients in 2026, average age 72
CMS counts 340 Medicare patients who saw Corey Merrill in 2026. The largest group is 65 to 74, with 168 patients. 75% of them have arthritis, and 72% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Corey Merrill's median patient age at 56, with 58% women.
Corey Merrill's Medicare patients by age, 2026
Corey Merrill's Medicare patients by sex, 2026
- Women21864%
- Men12236%
Chronic conditions among Corey Merrill's Medicare patients, 2026
- Arthritis75%
- High cholesterol72%
- High blood pressure60%
- Mood disorders32%
- Anxiety31%
- Depression29%
- Osteoporosis29%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Corey Merrill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Corey Merrill wrote 224 Medicare Part D claims in 2026
In 2026, Corey Merrill wrote 224 Medicare Part D claims for 109 patients. 95% of them were for generic drugs.
Corey Merrill's Part D claims by kind of drug, 2026
- Generic213 claims95%
- Brand-name and other11 claims5%
Drug classes CMS tracks in Corey Merrill's Part D claims, 2026
- Opioids11%24 of 224 claims
- Antibiotics13%29 of 224 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), 2026 data
Corey Merrill offers telehealth to Medicare patients
CMS lists Corey Merrill as offering telehealth.
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Corey Merrill received $23 in industry payments in 2025
CMS Open Payments shows 1 general payment to Corey Merrill from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bioventus LLC paid the most, $23.
Companies that paid Corey Merrill 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 Corey Merrill'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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 Corey Merrill
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Corey Merrill's NPI number?
Corey Merrill's NPI number is 1386032308. It was assigned on December 29, 2014, and it is active in the NPI Registry.
What does Corey Merrill specialize in?
Corey Merrill is a physician assistant in San Diego, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Corey Merrill practice?
Corey Merrill practices at 200 W Arbor Dr, San Diego, CA 92103. Corey Merrill's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Corey Merrill to 3 medical groups and 1 group practice or clinic, and a free account names each one.
What is Corey Merrill's office phone number?
The practice phone on file for Corey Merrill is (619) 543-6222. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Corey Merrill's email address?
Dmand AI checks professional and personal email addresses for Corey Merrill through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
Which hospitals is Corey Merrill affiliated with?
Corey Merrill is affiliated with Hillcrest Medical Center.
What medical group is Corey Merrill part of?
Corey Merrill is linked to UC San Diego Health. Dmand AI links Corey Merrill to 3 more medical groups, named with a free account.
Who does Corey Merrill practice with?
Dmand AI links 2,526 HCPs to Corey Merrill's primary medical group, 107 of them physician assistants. A free account lists them, with verified contacts.
Does Corey Merrill offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Corey Merrill as offering telehealth services.
How many Medicare patients does Corey Merrill see?
CMS counts 340 Medicare patients who saw Corey Merrill in 2026, with an average age of 72.
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Has Corey Merrill received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Corey Merrill from 1 company from 2025 to 2025. The largest total came from Bioventus LLC.
How long has Corey Merrill been practicing?
Corey Merrill graduated from medical school in 2014, 12 years ago.
What EHR does Corey Merrill's practice use?
Dmand AI tracks the EHR system at UCSD Hillcrest Medical Center and at 2 more sites and 3 medical groups. The vendor and product are available with a free Dmand AI account.
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