Dr. John J. Weiter, MD, PhD
- Medicare services, 2024
- 1,523
- Medicare patients, 2024
- 368
- Part D claims, 2024
- 72
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 300 Congress St, Quincy, MA 02169
- Practice phone
- Call (617) 471-5665
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nielsen Eye Center, Inc.
Quincy, Massachusetts
Find Dr. Weiter's professional email, personal email and mobile number
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Dr. John J. Weiter is an ophthalmologist in Quincy, Massachusetts
Dr. Weiter practices at Nielsen Eye Center, Inc. in Quincy, Massachusetts.
Dr. Weiter's NPI, 1992795421, was assigned on October 26, 2005. Dr. Weiter graduated from University of Chicago, Pritzker School of Medicine in 1968. Dr. Weiter holds Massachusetts license 37856.
- NPI
- 1992795421NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103866983
- NPI enumeration date
- October 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 471-5665
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 84
- Medical school graduation
- 1968
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John J. Weiter practices at Nielsen Eye Center, Inc. in Quincy, Massachusetts
Dr. Weiter's primary practice is Nielsen Eye Center, Inc., at 300 Congress St, Quincy, MA 02169 in Norfolk County. The practice phone is (617) 471-5665.
- Nielsen Eye Center, Inc.300 Congress St, Quincy, MA 02169 · Norfolk CountyPhone(617) 471-5665
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John J. Weiter is affiliated with 3 sites of care and 2 medical groups
Dr. Weiter's primary practice is Nielsen Eye Center, Inc. in Quincy, Massachusetts. Dmand AI also links Dr. Weiter to 2 group practices and clinics and 2 medical groups, 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. John J. Weiter's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weiter practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nielsen Eye Center, Inc. | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John J. Weiter is one of 617 ophthalmologists in Massachusetts
Ophthalmology is Dr. Weiter's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Weiter is licensed in Massachusetts.
Specialties and state licenses
- Ophthalmology, MassachusettsPrimary
Ophthalmologists near Dr. Weiter
Counts of ophthalmologists 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. John J. Weiter billed Medicare for 1,523 services in 2024
CMS data shows 1,523 Medicare services from Dr. Weiter across 10 procedure codes in 2024, for 368 Medicare patients. Medicare paid $84,150 for them. Every service was in an office.
Dr. Weiter's Medicare services by type, 2024
- Tests and treatments1,385
- Surgery72
- Drugs given in the office66
Dr. Weiter compared with the Massachusetts median for ophthalmologists, 2024
- Dr. Weiter
- Massachusetts median
- Medicare services
- 1,523vs 1,598Close to median
- Medicare patients
- 368vs 59438% below
- Part D claims
- 51vs 54591% below
Medians across 612 ophthalmologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Weiter'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weiter and other ophthalmologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John J. Weiter treated 368 Medicare patients in 2024, average age 78
CMS counts 368 Medicare patients who saw Dr. Weiter in 2024. The largest group is 75 to 84, with 168 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Weiter's median patient age at 76, with 53% women.
Dr. Weiter's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Weiter's Medicare patients by sex, 2024
- Women20155%
- Men16745%
Chronic conditions among Dr. Weiter's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes36%
- Chronic kidney disease33%
- Anxiety27%
- Ischemic heart disease27%
- Atrial fibrillation23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weiter's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women53%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John J. Weiter wrote 72 Medicare Part D claims in 2024
In 2024, Dr. Weiter wrote 72 Medicare Part D claims for 26 patients. 68% of them were for generic drugs. CMS names the drug for 51 of them, across 1 drug with 11 or more claims each, at $518 in total drug cost.
Dr. Weiter's Part D claims by kind of drug, 2024
- Generic49 claims68%
- Brand-name23 claims32%
Dr. Weiter'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.
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
How Dr. John J. Weiter takes part in Medicare
Dr. Weiter 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. John J. Weiter graduated from University of Chicago, Pritzker School of Medicine
Dr. Weiter graduated from University of Chicago, Pritzker School of Medicine in 1968.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John J. Weiter'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 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 percentiles | Doctors and Clinicians National Downloadable File (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. John J. Weiter
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. John J. Weiter's NPI number?
Dr. John J. Weiter's NPI number is 1992795421. It was assigned on October 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John J. Weiter?
Dr. John J. Weiter is an ophthalmologist in Quincy, Massachusetts. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. John J. Weiter practice?
Dr. Weiter practices at 300 Congress St, Quincy, MA 02169. Dr. Weiter's primary practice is Nielsen Eye Center, Inc. in Quincy, Massachusetts. Dmand AI also links Dr. Weiter to 2 group practices and clinics and 2 medical groups.
What is Dr. John J. Weiter's office phone number?
The practice phone on file for Dr. Weiter is (617) 471-5665.
What is Dr. John J. Weiter's medical license number?
Dr. Weiter holds Massachusetts license 37856.
Does Dr. John J. Weiter accept Medicare?
Yes. CMS data shows Dr. Weiter billed Medicare for 1,523 services in 2024, and Dr. Weiter accepts Medicare assignment.
How many Medicare patients does Dr. John J. Weiter see?
CMS counts 368 Medicare patients who saw Dr. Weiter in 2024, with an average age of 78.
What services does Dr. John J. Weiter bill to Medicare?
In 2024, Dr. Weiter's most billed Medicare services were eye exam or test (92014), eye exam or test (92134) and eye exam or test (92133).
Where did Dr. John J. Weiter go to medical school?
Dr. Weiter graduated from University of Chicago, Pritzker School of Medicine in 1968.
What drugs does Dr. John J. Weiter prescribe most?
In 2024 Medicare Part D data, Dr. Weiter's most prescribed drugs by claims were Latanoprost.
How long has Dr. John J. Weiter been practicing?
Dr. Weiter graduated from medical school in 1968, 58 years ago.
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