Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

IBRAHIM BULENT CETINDAG M.D.
NPI 1447471396
Surgery in Boulder, CO

Active since May 01, 2007PECOS EnrolledAccepts Medicare Assignment
4743 ARAPAHOE AVE STE 202, BOULDER, CO 80303(303) 415-4599 Get Directions Write a Review

NPPES record last updated: October 10, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ibrahim Bulent Cetindag M.d. NPPES

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

IBRAHIM BULENT CETINDAG M.D. (NPI 1447471396) is an individual surgery provider in Boulder, Colorado, licensed in Colorado (CDRH.0005052) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Mercyone North Iowa Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1447471396
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameIBRAHIM BULENT CETINDAGCredential: M.D.
Location Address4743 ARAPAHOE AVE STE 202Boulder, CO 80303-1128
Mailing AddressPo Box 9049Boulder, CO 80301-9049 · (303) 415-4101 · Fax (303) 415-4769
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateMay 1, 2007
Last NPPES UpdateOctober 10, 2026
NPPES CertifiedOctober 10, 2026
✔ NPI 1447471396 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
Licenses✔ Licensed in CO · CDRH.0005052✔ Licensed in IL · 036-124001
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Surgical Critical CareTaxonomy 2086S0102X · License CDR.0005052 (CO)
4743 ARAPAHOE AVE STE 202, Boulder, CO 80303

Secondary Practice Locations 3

Location 1421 N 9th St, SUITE 240Springfield, IL 62702-5317 · Phone (217) 545-5878 · Fax (217) 545-9752
Location 24743 Arapahoe Ave Ste 100Boulder, CO 80303-1123 · Phone (303) 443-2123 · Fax (303) 443-9497
Location 3101 Erie Pkwy Ste 201GErie, CO 80516-4072 · Phone (303) 443-2123 · Fax (303) 443-9497

Other Identifiers 2

Medicaid036124001IL
Medicaid9000238182CO

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

Ibrahim Bulent Cetindag 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 ID5092853481
PECOS Enrollment IDI20150716002547, I20250519003618
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

3

Medicare enrollment records show Ibrahim Cetindag reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Medical Specialty
4743 ARAPAHOE AVE STE 202
Boulder, CO 80303
  • Reassigned Medicare billing, Colorado enrollment
  • 283 clinicians in this Medicare group
Family Medicine
635 E US HIGHWAY 9
Forest City, IA 50436
  • Reassigned Medicare billing, Iowa enrollment
  • 420 clinicians in this Medicare group
Family Medicine
610 8TH ST SE
Cedar Rapids, IA 52401
  • Reassigned Medicare billing, Iowa enrollment
  • Medicare enrollment name: Mercy Medical Center
  • 387 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 3

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
88 services36 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
17 services17 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Mercyone North Iowa Medical Center

Acute Care Hospitals · Mason City, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160064
Location1000 Fourth Street SWMason City, IA 50401 · Cerro Gordo County
Emergency services Birthing friendly

Mercy Medical Center - Cedar Rapids

Acute Care Hospitals · Cedar Rapids, IA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number160079
Location701 10th Street SECedar Rapids, IA 52403 · Linn County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80303 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
$89.43 typical visit price
range $58.06 – $174.82
Typical copayment $22.35 (range $14.51 – $43.70)
Most-billed visit code 99203
Established Patient
$72.20 typical visit price
range $18.88 – $142.79
Typical copayment $18.05 (range $4.72 – $35.69)
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 (Surgical)
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Surgery (Trauma Surgery)
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Clinic/Center (Medical Specialty)
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Neurological Surgery
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Physician Assistant (Surgical)
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Physician Assistant (Surgical)
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Physician Assistant
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303
Physician Assistant (Surgical)
4743 ARAPAHOE AVE STE 202
BOULDER, CO 80303

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 Ibrahim Cetindag's NPI number?

The NPI number for Ibrahim Cetindag is 1447471396. It was assigned to this individual provider in the NPPES registry on May 1, 2007.

Where is Ibrahim Cetindag located?

Ibrahim Cetindag practices at 4743 Arapahoe Ave Ste 202, Boulder, CO 80303. The listed phone number is (303) 415-4599.

What is Ibrahim Cetindag's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Ibrahim Cetindag enrolled in Medicare?

Yes. Ibrahim Cetindag 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 Ibrahim Cetindag's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ibrahim Cetindag reassigns Medicare benefits to 3 organizations: Boulder Community Health (Boulder, CO), North Iowa Mercy Clinics (Forest City, IA) and Family Practice Center (Cedar Rapids, IA). 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 Ibrahim Cetindag's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ibrahim Cetindag accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and Oscar Insurance Company and 1 other insurer list Ibrahim Cetindag 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 Ibrahim Cetindag affiliated with any hospitals?

According to CMS data, Ibrahim Cetindag is affiliated with Mercyone North Iowa Medical Center and Mercy Medical Center - Cedar Rapids.

When was this NPI record last updated?

The NPPES record for Ibrahim Cetindag was last updated on October 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days 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.