Haley Ann Thommen, PA-C
- Hospital affiliations
- 1
- Industry payments
- $54
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 22 South Greene Street, Baltimore, MD 21201
- Practice phone
- Call (410) 328-8667
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Haley Thommen'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.
Haley Ann Thommen is a physician assistant in Baltimore, Maryland
Haley Thommen practices at University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System.
Haley Thommen's NPI, 1336790021, was assigned on September 24, 2019.
- NPI
- 1336790021NPI Registry (opens in a new tab)
- NPI enumeration date
- September 24, 2019
- NPI status
- Active
- Practice phone
- (410) 328-8667
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Haley Ann Thommen practices at University of Maryland Medical Center in Baltimore, Maryland
Haley Thommen's primary practice is University of Maryland Medical Center, at 22 South Greene Street, Baltimore, MD 21201 in Baltimore City. The practice phone is (410) 328-8667.
- University of Maryland Medical Center22 South Greene Street, Baltimore, MD 21201 · Baltimore CityPhone(410) 328-8667
Source: Dmand AI Affiliation Data
Haley Ann Thommen is affiliated with 2 sites of care and 3 medical groups
Haley Thommen's primary practice is University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System. The medical group on file is Mercy Family Care Physicians. Dmand AI also links Haley Thommen to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Haley Ann Thommen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Haley Thommen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Medical Center | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across University of Maryland Medical System and 6.2K+ hospitals, with verified contacts in the same login.
Haley Ann Thommen is one of 2,452 physician assistants in Maryland
Physician assistant is Haley Thommen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Haley Thommen has a license on file in Maryland.
Specialties and state licenses
- Physician assistant, Maryland
Physician assistants near Haley Thommen
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
Haley Ann Thommen's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Haley Thommen's median patient age at 11, with 55% women.
Haley Thommen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women55%
- Men44%
Source: Dmand AI Patient Panel Data
Haley Ann Thommen received $54 in industry payments in 2025
CMS Open Payments shows 1 general payment to Haley Thommen from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $54.
Companies that paid Haley Thommen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Haley Ann Thommen'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 |
| 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 Haley Ann Thommen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Haley Ann Thommen's NPI number?
Haley Ann Thommen's NPI number is 1336790021. It was assigned on September 24, 2019, and it is active in the NPI Registry.
What does Haley Ann Thommen specialize in?
Haley Ann Thommen is a physician assistant in Baltimore, Maryland. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Haley Ann Thommen practice?
Haley Thommen practices at 22 South Greene Street, Baltimore, MD 21201. Haley Thommen's primary practice is University of Maryland Medical Center in Baltimore, Maryland, part of University of Maryland Medical System. Dmand AI also links Haley Thommen to 2 medical groups and 1 group practice or clinic.
What is Haley Ann Thommen's office phone number?
The practice phone on file for Haley Thommen is (410) 328-8667.
Which hospitals is Haley Ann Thommen affiliated with?
Haley Thommen practices at University of Maryland Medical Center in Baltimore, Maryland.
What medical group is Haley Ann Thommen part of?
Haley Thommen is linked to Mercy Family Care Physicians. Dmand AI links Haley Thommen to 2 more medical groups.
Has Haley Ann Thommen received payments from drug or device companies?
CMS Open Payments shows $54 in general payments to Haley Thommen from 1 company from 2025 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Haley Ann Thommen been practicing?
Haley Thommen's NPI was assigned in 2019.
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