Douglas Frey, FNP, MSN, NPC
- Part D claims, 2024
- 2,059
- Hospital affiliations
- 2
- Industry payments
- $29
- Medical group
- 1
- State license
- 1
- Practice address
- 616 16th Street, Oakland, CA 94612
- Practice phone
- Call (610) 918-4122
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Downtown Oakland Health Center
FQHC - Main Site · Oakland, California
Find Douglas Frey'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.
Douglas Frey is a family nurse practitioner in Oakland, California
Douglas Frey practices at Downtown Oakland Health Center in Oakland, California.
Douglas Frey's NPI, 1467711572, was assigned on May 9, 2012. Douglas Frey holds California license 21559.
- NPI
- 1467711572NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5395060149
- NPI enumeration date
- May 9, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (610) 918-4122
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Douglas Frey practices at Downtown Oakland Health Center in Oakland, California
Douglas Frey's primary practice is Downtown Oakland Health Center, at 616 16th Street, Oakland, CA 94612 in Alameda County. The practice phone is (610) 918-4122.
- Downtown Oakland Health Center616 16th Street, Oakland, CA 94612 · Alameda CountyPhone(610) 918-4122
Source: Dmand AI Affiliation Data
Douglas Frey is affiliated with 3 sites of care and 1 medical group
Douglas Frey's primary practice is Downtown Oakland Health Center in Oakland, California. Douglas Frey is also affiliated with Alta Bates Summit Medical Center. The medical group on file is LifeLong Medical Care. Dmand AI also links Douglas Frey to 1 more hospital, named with a free account. Douglas Frey's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Douglas Frey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Douglas Frey practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Downtown Oakland Health Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Douglas Frey is one of 13,532 family nurse practitioners in California
Family is Douglas Frey's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Douglas Frey is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Family nurse practitioners near Douglas Frey
Counts of family nurse practitioners 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
Douglas Frey's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Douglas Frey's median patient age at 59, with 49% women.
Douglas Frey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women49%
- Men48%
Source: Dmand AI Patient Panel Data
Douglas Frey wrote 2,059 Medicare Part D claims in 2024
In 2024, Douglas Frey wrote 2,059 Medicare Part D claims for 210 patients. 78% of them were for generic drugs.
Douglas Frey's Part D claims by kind of drug, 2024
- Generic1,613 claims78%
- Brand-name431 claims21%
- Other15 claims1%
Drug classes CMS tracks in Douglas Frey's Part D claims, 2024
- Antipsychotics, patients 65 and over1%22 of 2,059 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
How Douglas Frey takes part in Medicare
Douglas Frey 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)
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Douglas Frey received $29 in industry payments in 2025
CMS Open Payments shows 1 general payment to Douglas Frey from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Exact Sciences Corporation paid the most, $29.
Companies that paid Douglas Frey 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 Douglas Frey'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 DataDmand AI Org Hierarchy 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 Douglas Frey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Douglas Frey's NPI number?
Douglas Frey's NPI number is 1467711572. It was assigned on May 9, 2012, and it is active in the NPI Registry.
What does Douglas Frey specialize in?
Douglas Frey is a family nurse practitioner in Oakland, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Douglas Frey practice?
Douglas Frey practices at 616 16th Street, Oakland, CA 94612. Douglas Frey's primary practice is Downtown Oakland Health Center in Oakland, California. Dmand AI also links Douglas Frey to 1 hospital.
What is Douglas Frey's office phone number?
The practice phone on file for Douglas Frey is (610) 918-4122.
What is Douglas Frey's medical license number?
Douglas Frey holds California license 21559.
Which hospitals is Douglas Frey affiliated with?
Douglas Frey is affiliated with Alta Bates Summit Medical Center. Dmand AI links Douglas Frey to 1 more hospital.
What medical group is Douglas Frey part of?
Douglas Frey is linked to LifeLong Medical Care.
Does Douglas Frey accept Medicare?
Yes. CMS lists Douglas Frey as accepting Medicare assignment.
Has Douglas Frey received payments from drug or device companies?
CMS Open Payments shows $29 in general payments to Douglas Frey from 1 company from 2025 to 2025. The largest total came from Exact Sciences Corporation.
How long has Douglas Frey been practicing?
Douglas Frey graduated from medical school in 2011, 15 years ago.
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