Nancy Ellen Koehler, PA-C
- Part D claims, 2024
- 83
- Industry payments
- $7,782
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 24431 Calle De La Louisa Suite 200 Suite 200, Laguna Hills, CA 92653-7641
- Practice phone
- Call (949) 266-0216
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Katherine Bao-shian Lee, M.d., A Professional Corporation
Dermatology practice · Laguna Hills, California
Find Nancy Koehler'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.
Nancy Ellen Koehler is a physician assistant in Laguna Hills, California
Nancy Koehler practices at Katherine Bao-shian Lee, M.d., A Professional Corporation in Laguna Hills, California.
Nancy Koehler's NPI, 1164543716, was assigned on April 2, 2007. Nancy Koehler holds California license PA14868.
- NPI
- 1164543716NPI Registry (opens in a new tab)
- NPI enumeration date
- April 2, 2007
- NPI status
- Active
- Practice phone
- (949) 266-0216
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nancy Ellen Koehler practices at Katherine Bao-shian Lee, M.d., A Professional Corporation in Laguna Hills, California
Nancy Koehler's primary practice is Katherine Bao-shian Lee, M.d., A Professional Corporation, at 24431 Calle De La Louisa Suite 200 Suite 200, Laguna Hills, CA 92653-7641. The practice phone is (949) 266-0216.
- Katherine Bao-shian Lee, M.d., A Professional Corporation24431 Calle De La Louisa Suite 200 Suite 200, Laguna Hills, CA 92653-7641Phone(949) 266-0216
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nancy Ellen Koehler is affiliated with 1 site of care and 1 medical group
Nancy Koehler's primary practice is Katherine Bao-shian Lee, M.d., A Professional Corporation in Laguna Hills, California. The medical group on file is Halcyon Dermatology.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Nancy Ellen Koehler's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nancy Koehler practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Katherine Bao-shian Lee, M.d., A Professional Corporation | Available with a free account |
Source: Dmand AI Technology Install Data
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Nancy Ellen Koehler is one of 2,381 physician assistants in California
Medical is Nancy Koehler's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Nancy Koehler is licensed in California.
Specialties and state licenses
- Medical physician assistant, CaliforniaPrimary
Physician assistants near Nancy Koehler
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
Nancy Ellen Koehler's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Nancy Koehler's median patient age at 66, with 75% women.
Nancy Koehler'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
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Nancy Ellen Koehler wrote 83 Medicare Part D claims in 2024
In 2024, Nancy Koehler wrote 83 Medicare Part D claims for 36 patients. 100% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $892 in total drug cost.
Nancy Koehler's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Nancy Ellen Koehler received $7,782 in industry payments from 2024 to 2025
CMS Open Payments shows 258 general payments to Nancy Koehler from 23 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 75% of the total. UCB, Inc. paid the most, $2,674.
General payments to Nancy Koehler by program year, 2024 to 2025
General payments to Nancy Koehler by kind, 2024 to 2025
- Food and beverage$5,85675%
- Consulting fees$1,90024%
- Travel and lodging$210%
- Education$50%
Companies that paid Nancy Koehler the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Nancy Ellen Koehler'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)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 Nancy Ellen Koehler
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nancy Ellen Koehler's NPI number?
Nancy Ellen Koehler's NPI number is 1164543716. It was assigned on April 2, 2007, and it is active in the NPI Registry.
What does Nancy Ellen Koehler specialize in?
Nancy Ellen Koehler is a physician assistant in Laguna Hills, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Nancy Ellen Koehler practice?
Nancy Koehler practices at 24431 Calle De La Louisa Suite 200 Suite 200, Laguna Hills, CA 92653-7641. Nancy Koehler's primary practice is Katherine Bao-shian Lee, M.d., A Professional Corporation in Laguna Hills, California.
What is Nancy Ellen Koehler's office phone number?
The practice phone on file for Nancy Koehler is (949) 266-0216.
What is Nancy Ellen Koehler's medical license number?
Nancy Koehler holds California license PA14868.
What medical group is Nancy Ellen Koehler part of?
Nancy Koehler is linked to Halcyon Dermatology.
What drugs does Nancy Ellen Koehler prescribe most?
In 2024 Medicare Part D data, Nancy Koehler's most prescribed drugs by claims were Ketoconazole and Metronidazole.
Has Nancy Ellen Koehler received payments from drug or device companies?
CMS Open Payments shows $7,782 in general payments to Nancy Koehler from 23 companies from 2024 to 2025. The largest total came from UCB, Inc.
How long has Nancy Ellen Koehler been practicing?
Nancy Koehler's NPI was assigned in 2007.
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