Dr. Mary M. Hagerty, MD

  • Winchester, VA
  • Rheumatologist
NPI1942279195PAC ID3577533967
Medicare services, 2024
90,107
Medicare patients, 2024
413
Part D claims, 2024
2,691
MIPS score, 2024
86
Hospital affiliations
5
Practice address
1730 Amherst St, Winchester, VA 22601-2807
Practice phone
Call (540) 667-6232
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Arthritis Specialists Of Winchester

Physician office · Winchester, Virginia

See all 6 affiliations

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Dr. Mary M. Hagerty is a rheumatologist in Winchester, Virginia

Dr. Hagerty practices at Arthritis Specialists Of Winchester in Winchester, Virginia.

Dr. Hagerty's NPI, 1942279195, was assigned on March 17, 2006. Dr. Hagerty graduated from Rush Medical College of Rush University in 1982. Dr. Hagerty holds Virginia license 0101048922.

NPI and contact details
Medicare PAC ID
3577533967
NPI enumeration date
March 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(540) 667-6232
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
70
Medical school graduation
1982

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mary M. Hagerty practices at Arthritis Specialists of Winchester in Winchester, Virginia

Dr. Hagerty's primary practice is Arthritis Specialists of Winchester, at 1730 Amherst St, Winchester, VA 22601-2807. The practice phone is (540) 667-6232.

  • Arthritis Specialists of Winchester
    1730 Amherst St, Winchester, VA 22601-2807Phone(540) 667-6232

Source: Dmand AI Affiliation Data

Dr. Mary M. Hagerty is affiliated with 6 sites of care

Dr. Hagerty's primary practice is Arthritis Specialists Of Winchester in Winchester, Virginia. Dr. Hagerty is also affiliated with Winchester Medical Center. Dmand AI also links Dr. Hagerty to 4 more hospitals, each named with a free account.

Arthritis Specialists Of WinchesterPhysician office · Winchester, VirginiaPrimary
Winchester Medical CenterAcute care hospital, Winchester, VA4 hospitalsNames with a free account
See all 6 affiliations for Dr. Hagerty

Source: Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Mary M. Hagerty's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hagerty practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Arthritis Specialists Of WinchesterAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mary M. Hagerty is one of 160 rheumatologists in Virginia

Rheumatology is Dr. Hagerty's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Hagerty is licensed in Virginia.

Specialties and state licenses

  • Rheumatology, VirginiaPrimaryLicense 0101048922 · taxonomy 207RR0500X

Rheumatologists near Dr. Hagerty

Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.

160rheumatologists in Virginia
4rheumatologists in Winchester

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Mary M. Hagerty billed Medicare for 90,107 services in 2024

CMS data shows 90,107 Medicare services from Dr. Hagerty across 35 procedure codes in 2024, for 413 Medicare patients. Medicare paid $1,336,394 for them. Every service was in an office.

Medicare services, 202490,107
Medicare patients413
Paid by Medicare$1.3M
Procedure codes35

Dr. Hagerty's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Drugs given in the office
2023: 58,3612024: 84,23444%
Lab and pathology
2023: 2,2972024: 1,67127%
Surgery
2023: 1,5482024: 1,6335%
Tests and treatments
2023: 9582024: 1,0449%
Office and hospital visits
2023: 9842024: 9236%
Other services
2023: 02024: 463
Imaging
2023: 1522024: 1399%

Dr. Hagerty compared with the Virginia median for rheumatologists, 2024

  • Dr. Hagerty
  • Virginia median
Medicare services
90,107vs 99990.2 times
Medicare patients
413vs 30436% above
Part D claims
2,401vs 9702.5 times

Medians across 159 rheumatologists in Virginia with Dmand AI profiles that report each measure.

Dr. Hagerty's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Hagerty

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mary M. Hagerty treated 413 Medicare patients in 2024, average age 76

CMS counts 413 Medicare patients who saw Dr. Hagerty in 2024. The largest group is 65 to 74, with 187 patients. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.27, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Hagerty's median patient age at 73, with 79% women.

Medicare patients, 2024413
Average age76
Average risk score1.27

Dr. Hagerty's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Hagerty's Medicare patients by sex, 2024

  • Women33882%
  • Men7518%

Chronic conditions among Dr. Hagerty's Medicare patients, 2024

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Osteoporosis54%
  5. Chronic kidney disease32%
  6. Mood disorders29%
  7. Depression28%
  8. Anxiety26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Hagerty's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women79%
  • Men20%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mary M. Hagerty wrote 2,691 Medicare Part D claims in 2024

In 2024, Dr. Hagerty wrote 2,691 Medicare Part D claims for 301 patients. 90% of them were for generic drugs. CMS names the drug for 2,401 of them, across 35 drugs with 11 or more claims each, at $1,170,562 in total drug cost. In 2023, CMS named 2,187 claims across 36 drugs.

Part D claims, 20242,691
Drugs named by CMS35
Total drug cost$1.2M
Part D patients301

Dr. Hagerty's Part D claims by kind of drug, 2024

  • Generic2,421 claims90%
  • Brand-name and other270 claims10%

Dr. Hagerty's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Hagerty's Part D claims, 2024

  • Opioids4%112 of 2,691 claims
  • Antibiotics2%59 of 2,691 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,1872024: 2,40110%

Drugs named by CMS: 35 in 2024, 36 in 2023.

See all prescribing by Dr. Hagerty

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

Dr. Mary M. Hagerty scored 86 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Hagerty for performance year 2024, reported individually. Dr. Hagerty accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hagerty as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Hagerty's MIPS scores, performance year 2024

  • 86of 100Final score
  • 86.9of 100Quality
  • 40of 100Improvement Activities
  • 71of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Mary M. Hagerty received $6,396 in industry payments from 2016 to 2025

CMS Open Payments shows 332 general payments to Dr. Hagerty from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Amgen Inc. paid the most, $960.

General payments to Dr. Hagerty by program year, 2016 to 2025

General payments to Dr. Hagerty by kind, 2016 to 2025

$6.4Kin total
  • Food and beverage$6,21397%
  • Education$1833%

Companies that paid Dr. Hagerty the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Hagerty

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mary M. Hagerty graduated from Rush Medical College of Rush University

Dr. Hagerty graduated from Rush Medical College of Rush University in 1982.

  1. Medical schoolRush Medical College of Rush University

Source: Dmand AI Professional Profile Data

Sources for Dr. Mary M. Hagerty's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mary M. Hagerty

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. Mary M. Hagerty's NPI number?

Dr. Mary M. Hagerty's NPI number is 1942279195. It was assigned on March 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mary M. Hagerty?

Dr. Mary M. Hagerty is a rheumatologist in Winchester, Virginia. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Mary M. Hagerty practice?

Dr. Hagerty practices at 1730 Amherst St, Winchester, VA 22601-2807. Dr. Hagerty's primary practice is Arthritis Specialists Of Winchester in Winchester, Virginia. Dmand AI also links Dr. Hagerty to 4 hospitals.

What is Dr. Mary M. Hagerty's office phone number?

The practice phone on file for Dr. Hagerty is (540) 667-6232.

What is Dr. Mary M. Hagerty's medical license number?

Dr. Hagerty holds Virginia license 0101048922.

Which hospitals is Dr. Mary M. Hagerty affiliated with?

Dr. Hagerty is affiliated with Winchester Medical Center. Dmand AI links Dr. Hagerty to 4 more hospitals.

Does Dr. Mary M. Hagerty accept Medicare?

Yes. CMS data shows Dr. Hagerty billed Medicare for 90,107 services in 2024, and Dr. Hagerty accepts Medicare assignment.

Does Dr. Mary M. Hagerty offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Hagerty as offering telehealth services.

What is Dr. Mary M. Hagerty's MIPS score?

Dr. Hagerty's MIPS final score for performance year 2024 is 86 out of 100, reported individually.

How many Medicare patients does Dr. Mary M. Hagerty see?

CMS counts 413 Medicare patients who saw Dr. Hagerty in 2024, with an average age of 76.

Show 5 more questionsShow fewer questions

What services does Dr. Mary M. Hagerty bill to Medicare?

In 2024, Dr. Hagerty's most billed Medicare services were injected or infused drug (J1602), injected or infused drug (J3262) and injected or infused drug (J0129).

Where did Dr. Mary M. Hagerty go to medical school?

Dr. Hagerty graduated from Rush Medical College of Rush University in 1982.

What drugs does Dr. Mary M. Hagerty prescribe most?

In 2024 Medicare Part D data, Dr. Hagerty's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Methotrexate.

Has Dr. Mary M. Hagerty received payments from drug or device companies?

CMS Open Payments shows $6,396 in general payments to Dr. Hagerty from 35 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Mary M. Hagerty been practicing?

Dr. Hagerty graduated from medical school in 1982, 44 years ago.

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