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IAN F DUNN M.D.
NPI 1346400090
Neurological Surgery in Oklahoma City, OK

Active since June 16, 2008PECOS EnrolledAccepts Medicare Assignment
1000 N LINCOLN BLVD # 4000, OKLAHOMA CITY, OK 73104(405) 271-8299(405) 271-3091 Get Directions Write a Review

NPPES record last updated: May 2, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ian F Dunn M.d. NPPES

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

IAN F DUNN M.D. (NPI 1346400090) is an individual neurological surgery provider in Oklahoma City, Oklahoma, licensed in Oklahoma (34229) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with O U Medical Center, and is a graduate of Harvard Medical School (2002).

NPPES Registry Identity

NPI1346400090
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameIAN F DUNNCredential: M.D.
Location Address1000 N LINCOLN BLVD # 4000Oklahoma City, OK 73104-3252
Mailing Address920 Stanton L Young Blvd # 2410Oklahoma City, OK 73104-5036 · (405) 271-8299 · Fax (405) 271-3091
Phone(405) 271-8299
Fax(405) 271-3091
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 2002
Enumeration DateJune 16, 2008
Last NPPES UpdateMay 2, 2022
NPPES CertifiedMay 2, 2022
✔ NPI 1346400090 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
Licenses✔ Licensed in OK · 34229✔ Licensed in MA · 237075✔ Licensed in AR · E-6083
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
1000 N LINCOLN BLVD # 4000, Oklahoma City, OK 73104
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health.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

Ian F Dunn 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 ID8224189253
PECOS Enrollment IDI20181115002647
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 Ian Dunn reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Board Of Regents Of The University Of Oklahoma - Ou Physicians
0.3 mi
Multi-Specialty
825 NE 10TH ST
Oklahoma City, OK 73104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 845 clinicians in this Medicare group
NPI 1801869250 (405) 271-3932
Ou Health Partners, Inc
0.3 mi
Multi-Specialty
1200 CHILDRENS AVE STE 11200
Oklahoma City, OK 73104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 1,795 clinicians in this Medicare group
NPI 1528642642 (405) 271-3932
Dana-Farber Cancer Institute, Inc.
1,492 mi
General Acute Care Hospital
450 BROOKLINE AVE
Boston, MA 02215
  • Reassigned Medicare billing, Massachusetts enrollment
  • 1,026 clinicians in this Medicare group
NPI 1851333686 (617) 632-3000
Brigham & Womens Physicians Organization Inc
1,492 mi
Internal Medicine
75 FRANCIS ST
Boston, MA 02115
  • Reassigned Medicare billing, Massachusetts enrollment
  • 4,574 clinicians in this Medicare group
NPI 1033535497 (617) 732-5500

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 6

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
66 services66 patients
Computer-assisted procedure inside brain 61781
A computer-assisted brain procedure uses advanced technology for precise navigation within the brain. A computer creates a 3D model of your brain to help the surgeon accurately target the area needing treatment, improving safety and effectiveness.
31 services30 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
27 services27 patients
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221
Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.
20 services20 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
17 services15 patients
Microscopic genetic analysis of tumor, using computer-assisted technology 88361
Microscopic genetic analysis of a tumor uses advanced computer technology to examine the genetic makeup of the tumor cells. This helps to understand the tumor better and tailor a treatment plan. It's a non-invasive procedure and provides valuable insights for your healthcare team.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

O U Medical Center

Acute Care Hospitals · Oklahoma City, OK
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370093
Location700 NE 13th StreetOklahoma City, OK 73104 · Oklahoma County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73104 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
$123.06 typical visit price
range $53.00 – $162.61
Typical copayment $30.76 (range $13.25 – $40.65)
Most-billed visit code 99204
Established Patient
$66.48 typical visit price
range $16.68 – $132.40
Typical copayment $16.62 (range $4.17 – $33.10)
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 6

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

PHILLIP BONNEY MD, MS
Neurological Surgery
1000 N LINCOLN BLVD # 4000
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4912
ABIGAIL YORK MD
Neurological Surgery
1000 N LINCOLN BLVD # 4000
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-8001
MR. ALEXANDER HOUPT
Student in an Organized Health Care Education/Training Program
1000 N LINCOLN BLVD # 4000
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 623-1981
DR. FNU SUFYAN IBRAHIM MBBS
Neurological Surgery
1000 N LINCOLN BLVD # 4000
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-8001
MRS. MACKENZIE LOYCE GARBANI APRN-CNS
Clinical Nurse Specialist
1000 N LINCOLN BLVD # 4000
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4912
DR. SHYIAN JEN M.D.
Psychiatry & Neurology (Neurology)
1000 N LINCOLN BLVD # 4000
OKLAHOMA CITY, OK 73104
Oklahoma County (405) 271-4912

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 Ian Dunn's NPI number?

The NPI number for Ian Dunn is 1346400090. It was assigned to this individual provider in the NPPES registry on June 16, 2008.

Where is Ian Dunn located?

Ian Dunn practices at 1000 N Lincoln Blvd # 4000, Oklahoma City, OK 73104. The listed phone number is (405) 271-8299.

What is Ian Dunn's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Ian Dunn enrolled in Medicare?

Yes. Ian Dunn 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 Ian Dunn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ian Dunn reassigns Medicare benefits to 4 organizations: Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK), Ou Health Partners, Inc (Oklahoma City, OK), Dana-Farber Cancer Institute, Inc. (Boston, MA) and Brigham & Womens Physicians Organization Inc (Boston, MA). 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 Ian Dunn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ian Dunn accept?

Health plans from Blue Cross and Blue Shield of Oklahoma and Mending Health list Ian Dunn 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 Ian Dunn affiliated with any hospitals?

According to CMS data, Ian Dunn is affiliated with O U Medical Center.

When was this NPI record last updated?

The NPPES record for Ian Dunn was last updated on May 2, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.