Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Ian D Weir, DO

Individual provider Pulmonary Disease Physician · NPI 1548368293

Dr. Ian D Weir, DO is registered under Pulmonary Disease in Norwalk, Connecticut. Qualified in 2002, 24 years ago. Practices with Nuvance Health Medical Practice CT Inc, a 741-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
24
Licensed in
CT
In the registry since
2006
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

24 Stevens St
Norwalk, CT 06850-3852 Not confirmed with CMS for 12 years — call before visiting
Phone: (203) 852-2375
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 044675 (CT)
Internal Medicine Physician Taxonomy 207R00000X · Licence 044675 (CT)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 044675 (CT)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 044675 (CT)

Record details

NPI number1548368293
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESMay 1, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), SLEEP MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Nuvance Health Medical Practice Ct Inc — 741 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients354
Services billed 1,030 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $537 18 payments · a meal or drink at a meeting or visit, not a fee
Consulting Fee $350 2 payments

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Danbury Hospital Hospital · Danbury, CT
  • Norwalk Hospital Hospital · Norwalk, CT

Colleagues at Nuvance Health Medical Practice CT Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 741 clinicians in the practice; 12 are shown here.

Other providers in Norwalk