Emma Maria Tierney
- Medicare patients, 2024
- 58
- Part D claims, 2024
- 268
- Hospital affiliations
- 1
- Industry payments
- $132
- Medical groups
- 2
- Practice address
- 1850 Town Center Parkway, Reston, VA 20190
- Practice phone
- Call (703) 689-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Emma Tierney'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.
Emma Maria Tierney is a physician assistant in Reston, Virginia
Emma Tierney practices at Reston Hospital Center in Reston, Virginia, part of HCA Healthcare.
Emma Tierney's NPI, 1437929858, was assigned on January 5, 2024.
- NPI
- 1437929858NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698212330
- NPI enumeration date
- January 5, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 689-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Emma Maria Tierney practices at Reston Hospital Center in Reston, Virginia
Emma Tierney's primary practice is Reston Hospital Center, at 1850 Town Center Parkway, Reston, VA 20190 in Fairfax County. The practice phone is (703) 689-9000.
- Reston Hospital Center1850 Town Center Parkway, Reston, VA 20190 · Fairfax CountyPhone(703) 689-9000
Source: Dmand AI Affiliation Data
Emma Maria Tierney is affiliated with 1 site of care and 2 medical groups
Emma Tierney's primary practice is Reston Hospital Center in Reston, Virginia, part of HCA Healthcare. The medical group on file is OrthoVirginia. Dmand AI also links Emma Tierney to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Emma Maria Tierney's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Emma Tierney practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reston Hospital Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Emma Maria Tierney is one of 3,636 physician assistants in Virginia
Physician assistant is Emma Tierney's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Emma Tierney
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
Emma Maria Tierney treated 58 Medicare patients in 2024, average age 74
CMS counts 58 Medicare patients who saw Emma Tierney in 2024. The largest group is 65 to 74, with 29 patients. 75% of them have arthritis, and 75% have high cholesterol. Their average risk score is 0.66, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Emma Tierney's median patient age at 66, with 51% women.
Emma Tierney's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Emma Tierney's Medicare patients by sex, 2024
- Women3662%
- Men2238%
Chronic conditions among Emma Tierney's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure67%
- Chronic kidney disease29%
- Ischemic heart disease29%
- Anxiety28%
- Cancer24%
Share of Medicare patients with each condition. A patient can have several.
Emma Tierney'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
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Emma Maria Tierney wrote 268 Medicare Part D claims in 2024
In 2024, Emma Tierney wrote 268 Medicare Part D claims for 88 patients. 97% of them were for generic drugs.
Emma Tierney's Part D claims by kind of drug, 2024
- Generic260 claims97%
- Brand-name and other8 claims3%
Drug classes CMS tracks in Emma Tierney's Part D claims, 2024
- Opioids40%108 of 268 claims
- Antibiotics17%45 of 268 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
How Emma Maria Tierney takes part in Medicare
Emma Tierney 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Emma Maria Tierney received $132 in industry payments in 2025
CMS Open Payments shows 1 general payment to Emma Tierney from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Globus Medical, Inc. paid the most, $132.
Companies that paid Emma Tierney 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 Emma Maria Tierney'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | 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) |
| 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 Emma Maria Tierney
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Emma Maria Tierney's NPI number?
Emma Maria Tierney's NPI number is 1437929858. It was assigned on January 5, 2024, and it is active in the NPI Registry.
What does Emma Maria Tierney specialize in?
Emma Maria Tierney is a physician assistant in Reston, Virginia. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Emma Maria Tierney practice?
Emma Tierney practices at 1850 Town Center Parkway, Reston, VA 20190. Emma Tierney's primary practice is Reston Hospital Center in Reston, Virginia, part of HCA Healthcare. Dmand AI also links Emma Tierney to 1 medical group.
What is Emma Maria Tierney's office phone number?
The practice phone on file for Emma Tierney is (703) 689-9000.
Which hospitals is Emma Maria Tierney affiliated with?
Emma Tierney practices at Reston Hospital Center in Reston, Virginia.
What medical group is Emma Maria Tierney part of?
Emma Tierney is linked to OrthoVirginia. Dmand AI links Emma Tierney to 1 more medical group.
Does Emma Maria Tierney accept Medicare?
Yes. CMS lists Emma Tierney as accepting Medicare assignment.
How many Medicare patients does Emma Maria Tierney see?
CMS counts 58 Medicare patients who saw Emma Tierney in 2024, with an average age of 74.
Has Emma Maria Tierney received payments from drug or device companies?
CMS Open Payments shows $132 in general payments to Emma Tierney from 1 company from 2025 to 2025. The largest total came from Globus Medical, Inc.
How long has Emma Maria Tierney been practicing?
Emma Tierney graduated from medical school in 2024, 2 years ago.
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