Dr. Ryan David Demmendaal, MD
- Part D claims, 2024
- 106
- Hospital affiliations
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2023
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Demmendaal'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. Ryan David Demmendaal is an emergency medicine physician in Portland, Maine
Dr. Demmendaal practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Demmendaal's NPI, 1245932607, was assigned on March 20, 2023. Dr. Demmendaal graduated from University of Washington School of Medicine in 2023. Dr. Demmendaal holds Maine license MD29926.
- NPI
- 1245932607NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860851722
- NPI enumeration date
- March 20, 2023
- NPI status
- Active
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ryan David Demmendaal practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Demmendaal's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.
- MaineHealth Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Source: Dmand AI Affiliation Data
Dr. Ryan David Demmendaal is affiliated with 2 sites of care and 1 medical group
Dr. Demmendaal's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dr. Demmendaal is also affiliated with MaineHealth Franklin Hospital. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dr. Demmendaal's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ryan David Demmendaal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Demmendaal practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Maine 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. Ryan David Demmendaal is one of 410 emergency medicine physicians in Maine
Emergency medicine is Dr. Demmendaal's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Demmendaal is licensed in Maine.
Specialties and state licenses
- Emergency medicine, MainePrimary
Emergency medicine physicians near Dr. Demmendaal
Counts of emergency medicine physicians 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. Ryan David Demmendaal's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Dr. Demmendaal's median patient age at 58, with 48% women.
Dr. Demmendaal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women48%
- Men51%
Source: Dmand AI Patient Panel Data
Dr. Ryan David Demmendaal wrote 106 Medicare Part D claims in 2024
In 2024, Dr. Demmendaal wrote 106 Medicare Part D claims for 79 patients. 88% of them were for generic drugs.
Dr. Demmendaal's Part D claims by kind of drug, 2024
- Generic93 claims88%
- Brand-name13 claims12%
Drug classes CMS tracks in Dr. Demmendaal's Part D claims, 2024
- Opioids10%11 of 106 claims
- Antibiotics45%48 of 106 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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Dr. Ryan David Demmendaal graduated from University of Washington School of Medicine
Dr. Demmendaal graduated from University of Washington School of Medicine in 2023.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ryan David Demmendaal'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) |
| 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. Ryan David Demmendaal
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. Ryan David Demmendaal's NPI number?
Dr. Ryan David Demmendaal's NPI number is 1245932607. It was assigned on March 20, 2023, and it is active in the NPI Registry.
What kind of doctor is Dr. Ryan David Demmendaal?
Dr. Ryan David Demmendaal is an emergency medicine physician in Portland, Maine. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Ryan David Demmendaal practice?
Dr. Demmendaal practices at 22 Bramhall St, Portland, ME 04102. Dr. Demmendaal's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
What is Dr. Ryan David Demmendaal's office phone number?
The practice phone on file for Dr. Demmendaal is (207) 662-0111.
What is Dr. Ryan David Demmendaal's medical license number?
Dr. Demmendaal holds Maine license MD29926.
Which hospitals is Dr. Ryan David Demmendaal affiliated with?
Dr. Demmendaal practices at MaineHealth Maine Medical Center in Portland, Maine. Dr. Demmendaal is also affiliated with MaineHealth Franklin Hospital.
What medical group is Dr. Ryan David Demmendaal part of?
Dr. Demmendaal is linked to MaineHealth Primary Care - Family Medicine - Portland.
Where did Dr. Ryan David Demmendaal go to medical school?
Dr. Demmendaal graduated from University of Washington School of Medicine in 2023.
How long has Dr. Ryan David Demmendaal been practicing?
Dr. Demmendaal graduated from medical school in 2023, 3 years ago.
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