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DR. SEAN E MARKEY M.D.
NPI 1235165705
Neurological Surgery in Denver, CO

Active since June 24, 2006PECOS Enrolled
77.17/100
CMS Quality Rating
850 E HARVARD AVE STE 255, DENVER, CO 80210(303) 996-7555(303) 996-7556 Get Directions Write a Review

NPPES record last updated: June 7, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 7, 2022, Aug 28, 2020 (2 updates tracked since 2020).

About Dr. Sean E Markey M.d. NPPES

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

DR. SEAN E MARKEY M.D. (NPI 1235165705) is an individual neurological surgery provider in Denver, Colorado, licensed in Colorado (39816) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235165705
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameDR. SEAN E MARKEYCredential: M.D.
Location Address850 E HARVARD AVE STE 255Denver, CO 80210-5032
Mailing Address8251 S Fillmore WayCentennial, CO 80122-3459 · (303) 996-7555 · Fax (303) 339-0202
Phone(303) 996-7555
Fax(303) 996-7556
Sole ProprietorYes
Enumeration DateJune 24, 2006
Last NPPES UpdateJune 7, 20222 updates tracked since enumeration
NPPES CertifiedJune 7, 2022
✔ NPI 1235165705 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
Licenses✔ Licensed in CO · 39816✔ Licensed in MO · 2021048634
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.
850 E HARVARD AVE STE 255, Denver, CO 80210
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Other Identifiers 2

Medicaid01735284CO
Medicaid73584070CO

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sean E Markey M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

2

Medicare enrollment records show Sean Markey reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Neurosurgical And Spine Specialists PC
Same address
Neurological Surgery
850 E HARVARD AVE STE 255
Denver, CO 80210
  • Reassigned Medicare billing, Colorado enrollment
  • 2 clinicians in this Medicare group
NPI 1639369390 (303) 996-7555
Portercare Adventist Health System
Same address
Neurological Surgery
850 E HARVARD AVE STE 305
Denver, CO 80210
  • Reassigned Medicare billing, Colorado enrollment
  • 733 clinicians in this Medicare group
NPI 1336972405 (720) 638-7500

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 11

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.

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.
114 services65 patients
Fusion of additional segment of spine 22614
Fusion of an additional segment of the spine is a surgical procedure to join two or more vertebrae together. This is done to stabilize the spine and reduce pain or correct a deformity. The procedure involves using bone grafts, rods, or screws to secure the spine.
63 services13 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
59 services44 patients
Insertion of cage or mesh device to spine bone and disc space during spine fusion 22853
Spine fusion is a procedure to join two or more vertebrae. During this process, a cage or mesh device is inserted into the spine bone and disc space. This helps to stabilize the spine, reduce pain, and improve functionality. The device acts as a bridge for new bone to grow on.
44 services22 patients
Computer-assisted spinal procedure 61783
A computer-assisted spinal procedure is a surgical technique that uses computer technology for improved precision. It involves creating a 3D image of your spine to guide the surgeon during the operation. This method enhances accuracy, reduces risk, and promotes quicker recovery.
23 services20 patients
Fusion of spine in lower back with partial removal of spine bone and disc 22633
This procedure, called lumbar spinal fusion, involves joining two or more vertebrae in your lower back. It includes a partial removal of a spine bone and disc to alleviate pain and improve stability. The goal is to reduce motion between vertebrae and prevent nerve irritation.
16 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80210 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
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.17/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.27
Promoting Interoperability81
Improvement Activities40
Cost59.47

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
5 suppliers27 claims27 services$14.37 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
7 suppliers53 claims53 services$68.64 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

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

NEUROSURGICAL AND SPINE SPECIALISTS PC
Neurological Surgery
850 E HARVARD AVE STE 255
DENVER, CO 80210
Denver County (303) 996-7555
PORTERCARE ADVENTIST HEALTH SYSTEM
Neurological Surgery
850 E HARVARD AVE STE 255
DENVER, CO 80210
Denver County (303) 996-7555
MRS. MICHELLE MARIE LALINDE FNP
Nurse Practitioner
850 E HARVARD AVE STE 255
DENVER, CO 80210
Denver County (303) 996-7555

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 Sean Markey's NPI number?

The NPI number for Sean Markey is 1235165705. It was assigned to this individual provider in the NPPES registry on June 24, 2006.

Where is Sean Markey located?

Sean Markey practices at 850 E Harvard Ave Ste 255, Denver, CO 80210. The listed phone number is (303) 996-7555.

What is Sean Markey's specialty?

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

Is Sean Markey enrolled in Medicare?

Yes. Sean Markey is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sean Markey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sean Markey reassigns Medicare benefits to 2 organizations: Neurosurgical And Spine Specialists PC (Denver, CO) and Portercare Adventist Health System (Denver, CO). 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 Sean Markey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sean Markey was last updated on June 7, 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.