Dr. James P. Hahn, DO
- Medicare patients, 2024
- 652
- Part D claims, 2024
- 321
- Industry payments
- $80
- Affiliated sites
- 1
- Medical groups
- 3
- Practice address
- 275 Grove St, Auburndale, MA 02466
- Practice phone
- Call (617) 421-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Atrius Health, Inc.
Auburndale, Massachusetts
Find Dr. Hahn'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. James P. Hahn is an optometrist in Auburndale, Massachusetts
Dr. Hahn practices at Atrius Health, Inc. in Auburndale, Massachusetts.
Dr. Hahn's NPI, 1194881052, was assigned on December 28, 2006. Dr. Hahn graduated from New England College of Optometry in 1994. Dr. Hahn holds Massachusetts license 3950.
- NPI
- 1194881052NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436224847
- NPI enumeration date
- December 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 421-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James P. Hahn practices at Atrius Health, Inc. in Auburndale, Massachusetts
Dr. Hahn's primary practice is Atrius Health, Inc., at 275 Grove St, Auburndale, MA 02466 in Middlesex County. The practice phone is (617) 421-1000.
- Atrius Health, Inc.275 Grove St, Auburndale, MA 02466 · Middlesex CountyPhone(617) 421-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James P. Hahn is affiliated with 2 sites of care and 3 medical groups
Dr. Hahn's primary practice is Atrius Health, Inc. in Auburndale, Massachusetts. The medical group on file is Atrius Health. Dmand AI also links Dr. Hahn to 2 more medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James P. Hahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hahn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Atrius Health, Inc. | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James P. Hahn is one of 1,098 optometrists in Massachusetts
Optometrist is Dr. Hahn's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Dr. Hahn is licensed in Massachusetts.
Specialties and state licenses
- Optometrist, MassachusettsPrimary
Optometrists near Dr. Hahn
Counts of optometrists 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. James P. Hahn treated 652 Medicare patients in 2024, average age 73
CMS counts 652 Medicare patients who saw Dr. Hahn in 2024. The largest group is 65 to 74, with 330 patients. 73% of them have high cholesterol, and 65% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Hahn's median patient age at 69, with 55% women.
Dr. Hahn's Medicare patients by age, 2024
Dr. Hahn's Medicare patients by sex, 2024
- Women39360%
- Men25940%
Chronic conditions among Dr. Hahn's Medicare patients, 2024
- High cholesterol73%
- High blood pressure65%
- Arthritis37%
- Diabetes33%
- Chronic kidney disease23%
- Anxiety21%
- Mood disorders21%
- Osteoporosis19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James P. Hahn wrote 321 Medicare Part D claims in 2024
In 2024, Dr. Hahn wrote 321 Medicare Part D claims for 129 patients. 83% of them were for generic drugs.
Dr. Hahn's Part D claims by kind of drug, 2024
- Generic267 claims83%
- Brand-name54 claims17%
Drug classes CMS tracks in Dr. Hahn's Part D claims, 2024
- Antibiotics4%13 of 321 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 Dr. James P. Hahn takes part in Medicare
Dr. Hahn 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)
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Dr. James P. Hahn received $80 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Hahn from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $80.
Companies that paid Dr. Hahn the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James P. Hahn graduated from New England College of Optometry
Dr. Hahn graduated from New England College of Optometry in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James P. Hahn'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. James P. Hahn
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. James P. Hahn's NPI number?
Dr. James P. Hahn's NPI number is 1194881052. It was assigned on December 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James P. Hahn?
Dr. James P. Hahn is an optometrist in Auburndale, Massachusetts. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Dr. James P. Hahn practice?
Dr. Hahn practices at 275 Grove St, Auburndale, MA 02466. Dr. Hahn's primary practice is Atrius Health, Inc. in Auburndale, Massachusetts. Dmand AI also links Dr. Hahn to 2 medical groups and 1 group practice or clinic.
What is Dr. James P. Hahn's office phone number?
The practice phone on file for Dr. Hahn is (617) 421-1000.
What is Dr. James P. Hahn's medical license number?
Dr. Hahn holds Massachusetts license 3950.
What medical group is Dr. James P. Hahn part of?
Dr. Hahn is linked to Atrius Health. Dmand AI links Dr. Hahn to 2 more medical groups.
Does Dr. James P. Hahn accept Medicare?
Yes. CMS lists Dr. Hahn as accepting Medicare assignment.
How many Medicare patients does Dr. James P. Hahn see?
CMS counts 652 Medicare patients who saw Dr. Hahn in 2024, with an average age of 73.
Where did Dr. James P. Hahn go to medical school?
Dr. Hahn graduated from New England College of Optometry in 1994.
Has Dr. James P. Hahn received payments from drug or device companies?
CMS Open Payments shows $80 in general payments to Dr. Hahn from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Dr. James P. Hahn been practicing?
Dr. Hahn graduated from medical school in 1994, 32 years ago.
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