Irwin M. Nathanson, OD
- Medicare patients, 2024
- 117
- Hospital affiliations
- 1
- Industry payments
- $21
- Medical group
- 1
- State license
- 1
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Irwin Nathanson'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.
Irwin M. Nathanson is an optometrist in Boston, Massachusetts
Irwin Nathanson practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Irwin Nathanson's NPI, 1710966338, was assigned on January 12, 2006. Irwin Nathanson graduated from New England College of Optometry in 1972. Irwin Nathanson holds Massachusetts license 2336.
- NPI
- 1710966338NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698935120
- NPI enumeration date
- January 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 80
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Irwin M. Nathanson practices at Massachusetts General Hospital in Boston, Massachusetts
Irwin Nathanson's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Irwin M. Nathanson is affiliated with 2 sites of care and 1 medical group
Irwin Nathanson's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Hospital. Dmand AI also links Irwin Nathanson to 1 more community health center, named with a free account. Irwin Nathanson's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Irwin M. Nathanson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Irwin Nathanson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +1 more affiliated site | 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 Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Irwin M. Nathanson is one of 1,098 optometrists in Massachusetts
Optometrist is Irwin Nathanson's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Irwin Nathanson is licensed in Massachusetts.
Specialties and state licenses
- Optometrist, MassachusettsPrimary
Optometrists near Irwin Nathanson
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
Irwin M. Nathanson treated 117 Medicare patients in 2024, average age 69
CMS counts 117 Medicare patients who saw Irwin Nathanson in 2024. The largest group is 65 to 74, with 46 patients. 67% of them have high cholesterol, and 60% have high blood pressure. 33% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Irwin Nathanson's median patient age at 54, with 51% women.
Irwin Nathanson's Medicare patients by age, 2024
Irwin Nathanson's Medicare patients by sex, 2024
- Women5345%
- Men6455%
Chronic conditions among Irwin Nathanson's Medicare patients, 2024
- High cholesterol67%
- High blood pressure60%
- Anxiety30%
- Arthritis28%
- Diabetes22%
- Ischemic heart disease21%
- Mood disorders20%
- Osteoporosis20%
Share of Medicare patients with each condition. A patient can have several.
Irwin Nathanson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Irwin M. Nathanson takes part in Medicare
Irwin Nathanson 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)
Irwin M. Nathanson received $21 in industry payments in 2025
CMS Open Payments shows 1 general payment to Irwin Nathanson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $21.
Companies that paid Irwin Nathanson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Irwin M. Nathanson graduated from New England College of Optometry
Irwin Nathanson graduated from New England College of Optometry in 1972.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Irwin M. Nathanson'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) |
| 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 Irwin M. Nathanson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Irwin M. Nathanson's NPI number?
Irwin M. Nathanson's NPI number is 1710966338. It was assigned on January 12, 2006, and it is active in the NPI Registry.
What does Irwin M. Nathanson specialize in?
Irwin M. Nathanson is an optometrist in Boston, Massachusetts. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Irwin M. Nathanson practice?
Irwin Nathanson practices at 55 Fruit Street, Boston, MA 02114. Irwin Nathanson's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Irwin Nathanson to 1 community health center.
What is Irwin M. Nathanson's office phone number?
The practice phone on file for Irwin Nathanson is (617) 726-2000.
What is Irwin M. Nathanson's medical license number?
Irwin Nathanson holds Massachusetts license 2336.
Which hospitals is Irwin M. Nathanson affiliated with?
Irwin Nathanson practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Irwin M. Nathanson part of?
Irwin Nathanson is linked to Massachusetts General Hospital.
Does Irwin M. Nathanson accept Medicare?
Yes. CMS lists Irwin Nathanson as accepting Medicare assignment.
How many Medicare patients does Irwin M. Nathanson see?
CMS counts 117 Medicare patients who saw Irwin Nathanson in 2024, with an average age of 69.
Where did Irwin M. Nathanson go to medical school?
Irwin Nathanson graduated from New England College of Optometry in 1972.
Has Irwin M. Nathanson received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to Irwin Nathanson from 1 company from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Irwin M. Nathanson been practicing?
Irwin Nathanson graduated from medical school in 1972, 54 years ago.
Selling to optometrist practices?
See optometrists in Massachusetts by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card