Erin M. O'Connor, PA-C

  • Winchester, MA
  • Physician assistant
NPI1295756609PAC ID6305844077
Medicare patients, 2024
374
Part D claims, 2024
2,616
Hospital affiliations
6
Medical group
1
State license
1
Practice address
41 Highland Avenue, Winchester, MA 01890
Practice phone
Call (781) 729-9000
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Winchester Hospital

Hospital · Winchester, Massachusetts

See all 9 affiliations

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Erin M. O'Connor is a physician assistant in Winchester, Massachusetts

Erin O'Connor practices at Winchester Hospital in Winchester, Massachusetts, part of Beth Israel Lahey Health.

Erin O'Connor's NPI, 1295756609, was assigned on July 21, 2006. Erin O'Connor holds Massachusetts license AP2154.

NPI and contact details
Medicare PAC ID
6305844077
NPI enumeration date
July 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(781) 729-9000
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
46
Medical school graduation
2006

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

Erin M. O'Connor practices at Winchester Hospital in Winchester, Massachusetts

Erin O'Connor's primary practice is Winchester Hospital, at 41 Highland Avenue, Winchester, MA 01890 in Middlesex County. The practice phone is (781) 729-9000.

  • Winchester Hospital
    41 Highland Avenue, Winchester, MA 01890 · Middlesex CountyPhone(781) 729-9000

Source: Dmand AI Affiliation Data

Erin M. O'Connor is affiliated with 8 sites of care and 1 medical group

Erin O'Connor's primary practice is Winchester Hospital in Winchester, Massachusetts, part of Beth Israel Lahey Health. Erin O'Connor is also affiliated with Massachusetts General Hospital. The medical group on file is Mass General Brigham Community Physicians Organization. Dmand AI also links Erin O'Connor to 4 more hospitals and 2 home health agencies, each named with a free account.

See all 9 affiliations for Erin O'Connor

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Erin M. O'Connor's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Erin O'Connor practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Winchester HospitalAvailable with a free account
+7 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Erin M. O'Connor is one of 3,922 physician assistants in Massachusetts

Physician assistant is Erin O'Connor's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Erin O'Connor is licensed in Massachusetts.

Specialties and state licenses

  • Physician assistant, MassachusettsPrimaryLicense AP2154 · taxonomy 363A00000X

Physician assistants near Erin O'Connor

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

Erin M. O'Connor treated 374 Medicare patients in 2024, average age 76

CMS counts 374 Medicare patients who saw Erin O'Connor in 2024. The largest group is 75 to 84, with 160 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Erin O'Connor's median patient age at 68, with 60% women.

Medicare patients, 2024374
Average age76
Average risk score1.14
Also on Medicaid7%

Erin O'Connor's Medicare patients by age, 2024

Erin O'Connor's Medicare patients by sex, 2024

  • Women20555%
  • Men16945%

Chronic conditions among Erin O'Connor's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis43%
  4. Ischemic heart disease33%
  5. Anxiety29%
  6. COPD27%
  7. Diabetes24%
  8. Mood disorders22%

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

Erin O'Connor'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

  • Women60%
  • Men39%

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

Erin M. O'Connor wrote 2,616 Medicare Part D claims in 2024

In 2024, Erin O'Connor wrote 2,616 Medicare Part D claims for 461 patients. 83% of them were for generic drugs.

Part D claims, 20242,616
Part D patients461

Erin O'Connor's Part D claims by kind of drug, 2024

  • Generic2,172 claims83%
  • Brand-name430 claims16%
  • Other14 claims1%

Drug classes CMS tracks in Erin O'Connor's Part D claims, 2024

  • Antibiotics6%144 of 2,616 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

Erin M. O'Connor offers telehealth to Medicare patients

Erin O'Connor accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Erin O'Connor as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Sources for Erin M. O'Connor'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 DataDmand AI Org Hierarchy Data
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 (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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 Erin M. O'Connor

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Erin M. O'Connor's NPI number?

Erin M. O'Connor's NPI number is 1295756609. It was assigned on July 21, 2006, and it is active in the NPI Registry.

What does Erin M. O'Connor specialize in?

Erin M. O'Connor is a physician assistant in Winchester, Massachusetts. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).

Where does Erin M. O'Connor practice?

Erin O'Connor practices at 41 Highland Avenue, Winchester, MA 01890. Erin O'Connor's primary practice is Winchester Hospital in Winchester, Massachusetts, part of Beth Israel Lahey Health. Dmand AI also links Erin O'Connor to 4 hospitals and 2 home health agencies.

What is Erin M. O'Connor's office phone number?

The practice phone on file for Erin O'Connor is (781) 729-9000.

What is Erin M. O'Connor's medical license number?

Erin O'Connor holds Massachusetts license AP2154.

Which hospitals is Erin M. O'Connor affiliated with?

Erin O'Connor practices at Winchester Hospital in Winchester, Massachusetts. Erin O'Connor is also affiliated with Massachusetts General Hospital. Dmand AI links Erin O'Connor to 4 more hospitals.

What medical group is Erin M. O'Connor part of?

Erin O'Connor is linked to Mass General Brigham Community Physicians Organization.

Does Erin M. O'Connor accept Medicare?

Yes. CMS lists Erin O'Connor as accepting Medicare assignment.

Does Erin M. O'Connor offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Erin O'Connor as offering telehealth services.

How many Medicare patients does Erin M. O'Connor see?

CMS counts 374 Medicare patients who saw Erin O'Connor in 2024, with an average age of 76.

How long has Erin M. O'Connor been practicing?

Erin O'Connor graduated from medical school in 2006, 20 years ago.

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