Dr. David Nah, DO
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 40
- Industry payments
- $46
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 25431 Cabot Rd, Laguna Hills, CA 92653
- Practice phone
- Call (949) 362-8877
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Performance Health Medical Group, Inc
Laguna Hills, California
Find Dr. Nah'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.
Dr. David Nah is an internist in Laguna Hills, California
Dr. Nah practices at Performance Health Medical Group, Inc in Laguna Hills, California.
Dr. Nah's NPI, 1477847127, was assigned on May 29, 2011. Dr. Nah graduated from Pacific NW Un of HS, Col of Osteopathic Medicine in 2013. Dr. Nah holds California license 20A20968.
- NPI
- 1477847127NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951742816
- NPI enumeration date
- May 29, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 362-8877
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Nah practices at Performance Health Medical Group, Inc in Laguna Hills, California
Dr. Nah's primary practice is Performance Health Medical Group, Inc, at 25431 Cabot Rd, Laguna Hills, CA 92653 in Orange County. The practice phone is (949) 362-8877.
- Performance Health Medical Group, Inc25431 Cabot Rd, Laguna Hills, CA 92653 · Orange CountyPhone(949) 362-8877
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David Nah is affiliated with 2 sites of care and 1 medical group
Dr. Nah's primary practice is Performance Health Medical Group, Inc in Laguna Hills, California. The medical group on file is Performance Health Medical Group. Dmand AI also links Dr. Nah 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 Dr. David Nah's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nah practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Performance Health Medical Group, 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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Dr. David Nah is one of 16,751 internists in California
Internal medicine is Dr. Nah's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nah is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Nah
Counts of internists 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
Dr. David Nah treated 12 Medicare patients in 2024, average age 66
CMS counts 12 Medicare patients who saw Dr. Nah in 2024. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nah's median patient age at 57, with 50% women.
Dr. Nah's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Nah wrote 40 Medicare Part D claims in 2024
In 2024, Dr. Nah wrote 40 Medicare Part D claims for 22 patients. 93% of them were for generic drugs.
Dr. Nah's Part D claims by kind of drug, 2024
- Generic37 claims93%
- Brand-name and other3 claims8%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. David Nah takes part in Medicare
Dr. Nah 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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Dr. David Nah received $46 in industry payments in 2025
CMS Open Payments shows 2 general payments to Dr. Nah from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $46.
Companies that paid Dr. Nah the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Nah graduated from Pacific NW Un of HS, Col of Osteopathic Medicine
Dr. Nah graduated from Pacific NW Un of HS, Col of Osteopathic Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Nah'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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. David Nah
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. David Nah's NPI number?
Dr. David Nah's NPI number is 1477847127. It was assigned on May 29, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. David Nah?
Dr. David Nah is an internist in Laguna Hills, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Nah practice?
Dr. Nah practices at 25431 Cabot Rd, Laguna Hills, CA 92653. Dr. Nah's primary practice is Performance Health Medical Group, Inc in Laguna Hills, California. Dmand AI also links Dr. Nah to 1 group practice or clinic.
What is Dr. David Nah's office phone number?
The practice phone on file for Dr. Nah is (949) 362-8877.
What is Dr. David Nah's medical license number?
Dr. Nah holds California license 20A20968.
What medical group is Dr. David Nah part of?
Dr. Nah is linked to Performance Health Medical Group.
Does Dr. David Nah accept Medicare?
Yes. CMS lists Dr. Nah as accepting Medicare assignment.
How many Medicare patients does Dr. David Nah see?
CMS counts 12 Medicare patients who saw Dr. Nah in 2024, with an average age of 66.
Where did Dr. David Nah go to medical school?
Dr. Nah graduated from Pacific NW Un of HS, Col of Osteopathic Medicine in 2013.
Has Dr. David Nah received payments from drug or device companies?
CMS Open Payments shows $46 in general payments to Dr. Nah from 1 company from 2025 to 2025. The largest total came from Amgen Inc.
How long has Dr. David Nah been practicing?
Dr. Nah graduated from medical school in 2013, 13 years ago.
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