Paul Day

  • Lake Forest, CA
  • Dentist
NPI1811393887
Part D claims, 2024
20
Industry payments
$6
Affiliated sites
2
Medical group
1
State license
1
Practice address
22821 Lake Forest Dr, Lake Forest, CA 92630
Practice phone
Call (949) 716-5050
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

OC Sports & Rehab

Lake Forest, California

See all 4 affiliations

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Paul Day is a dentist in Lake Forest, California

Paul Day practices at OC Sports & Rehab in Lake Forest, California.

Paul Day's NPI, 1811393887, was assigned on November 18, 2014. Paul Day holds California license 37648.

NPI and contact details
NPI enumeration date
November 18, 2014
NPI status
Active
Practice phone
(949) 716-5050
Professional email
Get email
Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Paul Day practices at OC Sports & Rehab in Lake Forest, California

Paul Day's primary practice is OC Sports & Rehab, at 22821 Lake Forest Dr, Lake Forest, CA 92630 in Orange County. The practice phone is (949) 716-5050.

  • OC Sports & Rehab
    22821 Lake Forest Dr, Lake Forest, CA 92630 · Orange CountyPhone(949) 716-5050

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Paul Day is affiliated with 3 sites of care and 1 medical group

Paul Day's primary practice is OC Sports & Rehab in Lake Forest, California. The medical group on file is Mercy Health Physicians. Dmand AI also links Paul Day to 1 more physician office and 1 therapy and rehab clinic, each named with a free account.

See all 4 affiliations for Paul Day

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Paul Day's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Paul Day practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
OC Sports & RehabAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Paul Day is one of 6,282 dentists in California

Dentist is Paul Day's primary specialty in the NPI Registry, under taxonomy code 122300000X. Paul Day is licensed in California.

Specialties and state licenses

  • Dentist, CaliforniaPrimaryLicense 37648 · taxonomy 122300000X

Dentists near Paul Day

Counts of dentists 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

Paul Day's patients have a median age of 66

Across all payers, Dmand AI patient panel data puts Paul Day's median patient age at 66, with 67% women.

Paul Day's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women67%
  • Men33%

Source: Dmand AI Patient Panel Data

Paul Day wrote 20 Medicare Part D claims in 2024

In 2024, Paul Day wrote 20 Medicare Part D claims for 16 patients. 100% of them were for generic drugs.

Part D claims, 202420
Part D patients16

Drug classes CMS tracks in Paul Day's Part D claims, 2024

  • Antibiotics90%18 of 20 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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Paul Day received $6 in industry payments in 2025

CMS Open Payments shows 1 general payment to Paul Day from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Align Technology, Inc. paid the most, $6.

Companies that paid Paul Day the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Paul Day

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Paul Day's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Paul Day

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Paul Day's NPI number?

Paul Day's NPI number is 1811393887. It was assigned on November 18, 2014, and it is active in the NPI Registry.

What does Paul Day specialize in?

Paul Day is a dentist in Lake Forest, California. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).

Where does Paul Day practice?

Paul Day practices at 22821 Lake Forest Dr, Lake Forest, CA 92630. Paul Day's primary practice is OC Sports & Rehab in Lake Forest, California. Dmand AI also links Paul Day to 1 physician office and 1 therapy and rehab clinic.

What is Paul Day's office phone number?

The practice phone on file for Paul Day is (949) 716-5050.

What is Paul Day's medical license number?

Paul Day holds California license 37648.

What medical group is Paul Day part of?

Paul Day is linked to Mercy Health Physicians.

Has Paul Day received payments from drug or device companies?

CMS Open Payments shows $6 in general payments to Paul Day from 1 company from 2025 to 2025. The largest total came from Align Technology, Inc.

How long has Paul Day been practicing?

Paul Day's NPI was assigned in 2014.

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