Dr. Patricia Ellen Ryan, MD
- Medicare services, 2017
- 285
- Part D claims, 2017
- 568
- Publications
- 1
- Industry payments
- $39
- Affiliated sites
- 3
- Practice address
- 2020 Hogback Rd, Ann Arbor, MI 48105-9752
- Practice phone
- Call (734) 677-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ellen S. Grosh
Behavioral health practice · Ann Arbor, Michigan
Find Dr. Ryan'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. Patricia Ellen Ryan is a psychiatrist in Howell, Michigan
Dr. Ryan practices at Ellen S. Grosh in Ann Arbor, Michigan.
Dr. Ryan's NPI, 1760508030, was assigned on March 21, 2007. Dr. Ryan holds Michigan license 4301054119.
- NPI
- 1760508030NPI Registry (opens in a new tab)
- NPI enumeration date
- March 21, 2007
- NPI status
- Active
- Practice phone
- (734) 677-5900
- 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)
Dr. Patricia Ellen Ryan practices in Ann Arbor and Howell
Dr. Ryan's primary practice is Ellen S. Grosh, at 2020 Hogback Rd, Ann Arbor, MI 48105-9752. The practice phone is (734) 677-5900. The NPI Registry lists Dr. Ryan's practice address as 620 Byron Rd, Howell, MI 48843.
- Ellen S. GroshPrimary2020 Hogback Rd, Ann Arbor, MI 48105-9752Phone(734) 677-5900
- NPI Registry address620 Byron Rd, Howell, MI 48843 · Livingston CountyPhone(734) 677-5900
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Patricia Ellen Ryan is affiliated with 3 sites of care and 2 medical groups
Dr. Ryan's primary practice is Ellen S. Grosh in Ann Arbor, Michigan. Dmand AI also links Dr. Ryan to 2 medical groups, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Patricia Ellen Ryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ellen S. Grosh | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patricia Ellen Ryan is one of 1,337 psychiatrists in Michigan
Psychiatry is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Ryan is licensed in Michigan.
Specialties and state licenses
- Psychiatry, MichiganPrimary
Psychiatrists near Dr. Ryan
Counts of psychiatrists 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. Patricia Ellen Ryan billed Medicare for 285 services in 2017
CMS data shows 285 Medicare services from Dr. Ryan across 3 procedure codes in 2017. Medicare paid $11,475 for them. Every service was in an office.
Dr. Ryan's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 862017: 14366%
- Tests and treatments
- 2016: 412017: 142246%
Dr. Ryan compared with the Michigan median for psychiatrists, 2017
- Dr. Ryan
- Michigan median
- Medicare services
- 285vs 14794% above
- Part D claims
- 568vs 2152.6 times
Medians across 1,367 psychiatrists in Michigan with Dmand AI profiles that report each measure.
Dr. Ryan's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ryan and other psychiatrists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patricia Ellen Ryan's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Ryan's median patient age at 68, with 50% women.
Dr. Ryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Patricia Ellen Ryan wrote 568 Medicare Part D claims in 2017
In 2017, Dr. Ryan wrote 568 Medicare Part D claims. They cover 23 drugs, with $31,307 in total drug cost. In 2016, CMS named 1,117 claims across 31 drugs.
Dr. Ryan's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 1,1172017: 56849%
Drugs named by CMS: 23 in 2017, 31 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Patricia Ellen Ryan has 1 publication on record
Dmand AI links 1 paper to Dr. Ryan in 2013. Dr. Ryan's most frequent co-authors are Paul R. Gigante, MD, Toni Shih Pearson, MD and Patricia Ryan, MD.
Dr. Ryan's most frequent co-authors
Recent publications by Dr. Ryan
See who Dr. Ryan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ryan works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Patricia Ellen Ryan received $39 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. Ryan from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $39.
Companies that paid Dr. Ryan the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Patricia Ellen Ryan'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Patricia Ellen Ryan
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. Patricia Ellen Ryan's NPI number?
Dr. Patricia Ellen Ryan's NPI number is 1760508030. It was assigned on March 21, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Patricia Ellen Ryan?
Dr. Patricia Ellen Ryan is a psychiatrist in Howell, Michigan. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Patricia Ellen Ryan practice?
Dr. Ryan practices at 2020 Hogback Rd, Ann Arbor, MI 48105-9752. Dr. Ryan also practices at 620 Byron Rd, Howell, MI 48843. Dr. Ryan's primary practice is Ellen S. Grosh in Ann Arbor, Michigan. Dmand AI also links Dr. Ryan to 2 medical groups, 1 physician office and 1 group practice or clinic.
What is Dr. Patricia Ellen Ryan's office phone number?
The practice phone on file for Dr. Ryan is (734) 677-5900.
What is Dr. Patricia Ellen Ryan's medical license number?
Dr. Ryan holds Michigan license 4301054119.
Does Dr. Patricia Ellen Ryan accept Medicare?
Yes. CMS data shows Dr. Ryan billed Medicare for 285 services in 2017.
What services does Dr. Patricia Ellen Ryan bill to Medicare?
In 2017, Dr. Ryan's most billed Medicare services were office visit, established patient (99212), psychiatric service (90833) and psychiatric service (90836).
What drugs does Dr. Patricia Ellen Ryan prescribe most?
In 2017 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Duloxetine HCl, Clonazepam and Bupropion XL.
Has Dr. Patricia Ellen Ryan received payments from drug or device companies?
CMS Open Payments shows $39 in general payments to Dr. Ryan from 1 company from 2019 to 2019. The largest total came from Novo Nordisk Inc.
How long has Dr. Patricia Ellen Ryan been practicing?
Dr. Ryan's NPI was assigned in 2007.
Does Dr. Patricia Ellen Ryan do research?
Dmand AI links 1 publication to Dr. Ryan.
Who does Dr. Patricia Ellen Ryan publish with?
Dr. Ryan's most frequent co-authors are Paul R. Gigante, MD (1 shared paper), Toni Shih Pearson, MD (1 shared paper) and Patricia Ryan, MD (1 shared paper).
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