TIMOTHY GERALD ZELENAK M.D.
NPI 1376746461
Radiology - Diagnostic Radiology in Washington, PA

Active since June 07, 2007PECOS EnrolledAccepts Medicare Assignment
155 WILSON AVE, WASHINGTON, PA 15301(724) 225-7000(724) 229-2018 Get Directions Write a Review

NPPES record last updated: April 9, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 9, 2026, Mar 17, 2018 (2 updates tracked since 2018).

About Timothy Gerald Zelenak M.d. NPPES

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

TIMOTHY GERALD ZELENAK M.D. (NPI 1376746461) is an individual diagnostic radiology provider in Washington, Pennsylvania, licensed in Pennsylvania (MD446076) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Sacred Heart Hospital, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1376746461
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameTIMOTHY GERALD ZELENAKCredential: M.D.
Location Address155 WILSON AVEWashington, PA 15301-3336
Mailing Address619 19th St SBirmingham, AL 35249-1900
Fax(724) 229-2018
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateJune 7, 2007
Last NPPES UpdateApril 9, 20262 updates tracked since enumeration
NPPES CertifiedApril 9, 2026
✔ NPI 1376746461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in PA · MD446076✔ Licensed in FL · ME112739
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
155 WILSON AVE, Washington, PA 15301

Secondary Practice Locations 3

Location 1161 E Nine Mile Rd Ste 100Pensacola, FL 32534-3140 · Phone (850) 201-2422 · Fax (850) 886-2229
Location 24724 N Davis Hwy Ste 100Pensacola, FL 32503-2339 · Phone (850) 201-2421 · Fax (850) 886-2235
Location 3155 Wilson AveWashington, PA 15301-3336 · Phone (724) 225-7000 · Fax (724) 229-2018

Other Identifiers 2

Medicaid1027536300001PA
Medicaid109676400FL

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Timothy Gerald Zelenak M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698931244
PECOS Enrollment IDI20200911000796
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

5

Medicare enrollment records show Timothy Zelenak reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
250 HARRISON ST
Titusville, FL 32780
  • Reassigned Medicare billing, Florida enrollment
  • 184 clinicians in this Medicare group
Diagnostic Radiology
8425 NORTHCLIFFE BLVD STE 101
Spring Hill, FL 34606
  • Reassigned Medicare billing, Florida enrollment
  • 210 clinicians in this Medicare group
Primary Care
1800 W HIBISCUS BLVD STE 101
Melbourne, FL 32901
  • Reassigned Medicare billing, Florida enrollment
  • 82 clinicians in this Medicare group
Diagnostic Radiology
1 TAMPA GENERAL CIR
Tampa, FL 33606
  • Reassigned Medicare billing, Florida enrollment
  • 1,130 clinicians in this Medicare group
Medical Oncology
1708 CAPE CORAL PKWY W, #10
Cape Coral, FL 33914
  • Reassigned Medicare billing, Florida enrollment
  • 880 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 31

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Nuclear medicine study from skull base to mid-thigh with ct scan 78815
A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.
202 services182 patients
X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
120 services115 patients
Ultrasound scan of head and neck soft tissue 76536
An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.
99 services98 patients
Nuclear medicine study of stomach to assess emptying 78264
A nuclear medicine study of the stomach assesses how quickly food leaves the stomach. A safe, radioactive substance is added to a meal. The radiation emitted is tracked, creating images that show the food's progress through the stomach. It's non-invasive and painless.
98 services98 patients
Ultrasound scan of head and neck soft tissue 76536
An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.
97 services97 patients
Nuclear medicine study of bone and/or joint whole body 78306
A nuclear medicine study of bone and/or joint whole body involves injecting a small amount of radioactive material into your body. This material travels to your bones and emits energy. A special camera captures this energy, creating images of your bones to help identify any abnormalities.
93 services90 patients

Hospital Affiliations CMS Care Compare 5

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

Sacred Heart Hospital

Acute Care Hospitals · Pensacola, FL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100025
Location5151 N 9th AvePensacola, FL 32504 · Escambia County
Emergency services Birthing friendly

Ascension Sacred Heart Bay

Acute Care Hospitals · Panama City, FL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number100026
Location615 N Bonita AvePanama City, FL 32401 · Bay County
Emergency services

Tampa General Hospital Brooksville

Acute Care Hospitals · Brooksville, FL
1/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number100071
Location17240 Cortez BlvdBrooksville, FL 34601 · Hernando County
Emergency services Birthing friendly

Lower Keys Medical Center

Acute Care Hospitals · Key West, FL
3/5 CMS rating
OwnershipProprietary
CMS Certification Number100150
Location5900 College RoadKey West, FL 33040 · Monroe County
Emergency services Birthing friendly

Doctors Memorial Hospital Inc

Critical Access Hospitals · Perry, FL
OwnershipVoluntary non-profit - Private
CMS Certification Number101314
Location333 N Byron Butler PkwyPerry, FL 32347 · Taylor County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15301 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
$84.88 typical visit price
range $54.64 – $166.87
Typical copayment $21.22 (range $13.66 – $41.71)
Most-billed visit code 99203
Established Patient
$68.36 typical visit price
range $17.33 – $135.84
Typical copayment $17.09 (range $4.33 – $33.96)
Most-billed visit code 99213
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.

Physician Assistant
155 WILSON AVE, UPMC HILLMAN CANCER CENTER2ND FLOOR
WASHINGTON, PA 15301
Nurse Practitioner (Family)
155 WILSON AVE
WASHINGTON, PA 15301
Nurse Anesthetist, Certified Registered
155 WILSON AVE
WASHINGTON, PA 15301
Nurse Practitioner (Critical Care Medicine)
155 WILSON AVE
WASHINGTON, PA 15301
Physician Assistant
155 WILSON AVE
WASHINGTON, PA 15301
Nurse Practitioner (Family)
155 WILSON AVE
WASHINGTON, PA 15301
Radiology (Radiation Oncology)
155 WILSON AVE
WASHINGTON, PA 15301
Pharmacist
155 WILSON AVE
WASHINGTON, PA 15301

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 Timothy Zelenak's NPI number?

The NPI number for Timothy Zelenak is 1376746461. It was assigned to this individual provider in the NPPES registry on June 7, 2007.

Where is Timothy Zelenak located?

Timothy Zelenak practices at 155 Wilson Ave, Washington, PA 15301. The listed phone number is (724) 225-7000.

What is Timothy Zelenak's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Timothy Zelenak enrolled in Medicare?

Yes. Timothy Zelenak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Timothy Zelenak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Zelenak reassigns Medicare benefits to 5 organizations: North Brevard Medical Support, Inc (Titusville, FL), Tower Imaging LLC (Spring Hill, FL), Medical Technology Transfer Corporation (Melbourne, FL), Mori Bean And Brooks Inc (Tampa, FL) and Florida Cancer Specialists & Research Institute, LLC (Cape Coral, FL). 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 Timothy Zelenak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Timothy Zelenak accept?

Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Timothy Zelenak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Timothy Zelenak affiliated with any hospitals?

According to CMS data, Timothy Zelenak is affiliated with Sacred Heart Hospital, Ascension Sacred Heart Bay, Tampa General Hospital Brooksville, Lower Keys Medical Center and Doctors Memorial Hospital Inc.

When was this NPI record last updated?

The NPPES record for Timothy Zelenak was last updated on April 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.