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BRYAN TIERNAN MD
NPI 1548964380
Emergency Medicine in Poughkeepsie, NY

Active since March 27, 2023PECOS Enrolled
45 READE PL, POUGHKEEPSIE, NY 12601(848) 454-8500 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Bryan Tiernan Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

BRYAN TIERNAN MD (NPI 1548964380) is an individual emergency medicine provider in Poughkeepsie, New York, licensed in New York (345599) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS, is affiliated with Canton-potsdam Hospital, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1548964380
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameBRYAN TIERNANCredential: MD
Location Address45 READE PLPoughkeepsie, NY 12601-3947
Mailing Address45 Reade PlPoughkeepsie, NY 12601-3947
Phone(848) 454-8500
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMarch 27, 2023
Last NPPES UpdateJune 24, 2026
NPPES CertifiedJune 24, 2026
✔ NPI 1548964380 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NY · 345599
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
45 READE PL, Poughkeepsie, NY 12601
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Bryan Tiernan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7214400464
PECOS Enrollment IDI20260629001421
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Bryan Tiernan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emergency Physician Services Of New York, P.C.
1.7 mi
Emergency Medicine
241 NORTH RD
Poughkeepsie, NY 12601
  • Reassigned Medicare billing, New York enrollment
  • 201 clinicians in this Medicare group
NPI 1093759847 (845) 483-5000
Gouverneur Hospital
198 mi
Critical Access
77 W BARNEY ST
Gouverneur, NY 13642
  • Reassigned Medicare billing, New York enrollment
  • 143 clinicians in this Medicare group
NPI 1295156412 (315) 287-1000
Canton-Potsdam Hospital
213 mi
General Acute Care Hospital
50 LEROY STREET
Potsdam, NY 13676
  • Reassigned Medicare billing, New York enrollment
  • 414 clinicians in this Medicare group
NPI 1568548782 (315) 265-3300
Massena Hospital Inc
229 mi
Critical Access
1 HOSPITAL DR
Massena, NY 13662
  • Reassigned Medicare billing, New York enrollment
  • 176 clinicians in this Medicare group
NPI 1972604460 (315) 769-4200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Canton-Potsdam Hospital

Acute Care Hospitals · Potsdam, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330197
Location50 Leroy StreetPotsdam, NY 13676 · St. Lawrence County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 12601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$95.99 typical visit price
range $61.88 – $187.05
Typical copayment $23.99 (range $15.47 – $46.76)
Most-billed visit code 99203
Established Patient
$108.56 typical visit price
range $19.92 – $151.94
Typical copayment $27.14 (range $4.98 – $37.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PRIYAM PATTNAIK MD
Pediatrics (Neonatal-Perinatal Medicine)
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (845) 431-5677
CHRISTINE WILSON AGACNP
Nurse Practitioner (Acute Care)
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (845) 454-8500
ZEESHAN IRANI DO, MSMED
Student in an Organized Health Care Education/Training Program
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (203) 241-2685
DIANNE GUARNERA THOMSON PA
Physician Assistant (Surgical)
45 READE PL, VASSAR BROTHERS MEDICAL CENTER
POUGHKEEPSIE, NY 12601
Dutchess County (845) 454-8500
DR. JAMES SHARP M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (845) 431-5618
DR. DOMENICO CARMINE MASTANDREA D.O.
Emergency Medicine
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (845) 431-5680
CHENG NG MD
Emergency Medicine
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (845) 790-1317
MEGAN CALARDO CRNA
Nurse Anesthetist, Certified Registered
45 READE PL
POUGHKEEPSIE, NY 12601
Dutchess County (845) 454-8500

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Bryan Tiernan's NPI number?

The NPI number for Bryan Tiernan is 1548964380. It was assigned to this individual provider in the NPPES registry on March 27, 2023.

Where is Bryan Tiernan located?

Bryan Tiernan practices at 45 Reade Pl, Poughkeepsie, NY 12601. The listed phone number is (848) 454-8500.

What is Bryan Tiernan's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Bryan Tiernan enrolled in Medicare?

Yes. Bryan Tiernan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Bryan Tiernan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Bryan Tiernan reassigns Medicare benefits to 4 organizations: Emergency Physician Services Of New York, P.C. (Poughkeepsie, NY), Gouverneur Hospital (Gouverneur, NY), Canton-Potsdam Hospital (Potsdam, NY) and Massena Hospital Inc (Massena, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Bryan Tiernan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Bryan Tiernan affiliated with any hospitals?

According to CMS data, Bryan Tiernan is affiliated with Canton-Potsdam Hospital.

When was this NPI record last updated?

The NPPES record for Bryan Tiernan was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.