Dr. Ryann Marie Ahern, MD
- Part D claims, 2024
- 14
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2010
- Practice address
- 3440 E La Palma Ave, Anaheim, CA 92806
- Practice phone
- Call (714) 279-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Ahern'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. Ryann Marie Ahern is an internist in Anaheim, California
Dr. Ahern practices at Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente.
Dr. Ahern's NPI, 1306149166, was assigned on December 15, 2010. Dr. Ahern holds California license A114908.
- NPI
- 1306149166NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567638679
- NPI enumeration date
- December 15, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 279-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryann Marie Ahern practices at Orange County - Anaheim Medical Center in Anaheim, California
Dr. Ahern's primary practice is Orange County - Anaheim Medical Center, at 3440 E La Palma Ave, Anaheim, CA 92806 in Orange County. The practice phone is (714) 279-4000.
- Orange County - Anaheim Medical Center3440 E La Palma Ave, Anaheim, CA 92806 · Orange CountyPhone(714) 279-4000
Source: Dmand AI Affiliation Data
Dr. Ryann Marie Ahern is affiliated with 2 sites of care and 1 medical group
Dr. Ahern's primary practice is Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Ahern to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryann Marie Ahern's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahern practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orange County - Anaheim Medical Center | 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. Ryann Marie Ahern is one of 16,751 internists in California
Internal medicine is Dr. Ahern's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ahern is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ahern
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. Ryann Marie Ahern's patients have a median age of 62
Across all payers, Dmand AI patient panel data puts Dr. Ahern's median patient age at 62, with 39% women.
Dr. Ahern's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women39%
- Men61%
Source: Dmand AI Patient Panel Data
Dr. Ryann Marie Ahern wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Ahern wrote 14 Medicare Part D claims. 86% of them were for generic drugs. They cover 16 drugs, with $7,639 in total drug cost. In 2018, CMS named 1,971 claims across 58 drugs.
Dr. Ahern's Part D claims by kind of drug, 2024
- Generic12 claims86%
- Brand-name and other2 claims14%
Dr. Ahern's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 1,9712019: 42978%
Drugs named by CMS: 16 in 2019, 58 in 2018.
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
How Dr. Ryann Marie Ahern takes part in Medicare
Dr. Ahern 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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Sources for Dr. Ryann Marie Ahern'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 and Drug (CMS) (opens in a new tab)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) |
| 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. Ryann Marie Ahern
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. Ryann Marie Ahern's NPI number?
Dr. Ryann Marie Ahern's NPI number is 1306149166. It was assigned on December 15, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryann Marie Ahern?
Dr. Ryann Marie Ahern is an internist in Anaheim, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ryann Marie Ahern practice?
Dr. Ahern practices at 3440 E La Palma Ave, Anaheim, CA 92806. Dr. Ahern's primary practice is Orange County - Anaheim Medical Center in Anaheim, California, part of Kaiser Permanente. Dmand AI also links Dr. Ahern to 1 group practice or clinic.
What is Dr. Ryann Marie Ahern's office phone number?
The practice phone on file for Dr. Ahern is (714) 279-4000.
What is Dr. Ryann Marie Ahern's medical license number?
Dr. Ahern holds California license A114908.
Which hospitals is Dr. Ryann Marie Ahern affiliated with?
Dr. Ahern practices at Orange County - Anaheim Medical Center in Anaheim, California.
What medical group is Dr. Ryann Marie Ahern part of?
Dr. Ahern is linked to Southern California Permanente Medical Group.
Does Dr. Ryann Marie Ahern accept Medicare?
Yes. CMS lists Dr. Ahern as accepting Medicare assignment.
What drugs does Dr. Ryann Marie Ahern prescribe most?
In 2019 Medicare Part D data, Dr. Ahern's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Simvastatin.
How long has Dr. Ryann Marie Ahern been practicing?
Dr. Ahern graduated from medical school in 2008, 18 years ago.
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