MARK AINSLEY INNIS MD
NPI 1740450220
Emergency Medicine in Portsmouth, VA

Active since March 11, 2008PECOS Enrolled
3636 HIGH ST, PORTSMOUTH, VA 23707(757) 398-2200(757) 398-2359 Get Directions Write a Review

NPPES record last updated: April 3, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 3, 2026, Apr 14, 2021 (2 updates tracked since 2021).

About Mark Ainsley Innis Md NPPES

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

MARK AINSLEY INNIS MD (NPI 1740450220) is an individual emergency medicine provider in Portsmouth, Virginia, licensed in Virginia (0101243430) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS, is affiliated with Brookdale Hospital Medical Center, and maintains a secondary practice location in Sullivan.

NPPES Registry Identity

NPI1740450220
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameMARK AINSLEY INNISCredential: MD
Location Address3636 HIGH STPortsmouth, VA 23707-3236
Mailing Address1431 Centerpoint Blvd, Suite 100Knoxville, TN 37932-1984 · (865) 985-7012 · Fax (865) 985-7077
Fax(757) 398-2359
Sole ProprietorNo
Medical School CMSOhio State University College Of MedicineGraduated 2004
Enumeration DateMarch 11, 2008
Last NPPES UpdateApril 3, 20262 updates tracked since enumeration
NPPES CertifiedApril 3, 2026
NPI 1740450220 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
Licenses Licensed in VA · 0101243430 Licensed in NY · 248590 Licensed in IN · 01078891A
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.
3636 HIGH ST, Portsmouth, VA 23707

Secondary Practice Location 1

Location 12200 N Section StSullivan, IN 47882-7523 · Phone (812) 268-4311

Other Identifiers 1

Medicaid1740450220VA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Mark Ainsley Innis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6800969601
PECOS Enrollment IDI20080725000496, I20131112002048
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.

Areas of Expertise CMS Part B claims 4

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
210 services202 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
139 services137 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
68 services64 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
26 services26 patients

Hospital Affiliations CMS Care Compare 4

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

Brookdale Hospital Medical Center

Acute Care Hospitals · Brooklyn, NY
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330233
Location1 Brookdale PlazaBrooklyn, NY 11212 · Kings County
Emergency services Birthing friendly

Sentara Albemarle Medical Center

Acute Care Hospitals · Elizabeth City, NC
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number340109
Location1144 N Road StElizabeth City, NC 27909 · Pasquotank County
Emergency services Birthing friendly

Bon Secours Maryview Medical Center

Acute Care Hospitals · Portsmouth, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490017
Location3636 High StreetPortsmouth, VA 23707 · Portsmouth City County
Emergency services

Sovah Health Danville

Acute Care Hospitals · Danville, VA
2/5 CMS rating
OwnershipProprietary
CMS Certification Number490075
Location142 South Main StreetDanville, VA 24541 · Danville City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 23707 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
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$99.13 typical visit price
range $18.07 – $138.91
Typical copayment $24.78 (range $4.51 – $34.72)
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.

Referred Medical Equipment & Supplies CMS DME claims

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

Standard wheelchair K0001
DME-Wheelchairs · category DD000N
1 supplier11 claims11 services$27.98 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 20

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

Nurse Anesthetist, Certified Registered
3636 HIGH ST
PORTSMOUTH, VA 23707
Physician Assistant
3636 HIGH ST
PORTSMOUTH, VA 23707
Family Medicine
3636 HIGH ST
PORTSMOUTH, VA 23707
Nurse Practitioner (Acute Care)
3636 HIGH ST
PORTSMOUTH, VA 23707
Student in an Organized Health Care Education/Training Program
3636 HIGH ST
PORTSMOUTH, VA 23707
Nurse Anesthetist, Certified Registered
3636 HIGH ST
PORTSMOUTH, VA 23707
Internal Medicine (Adolescent Medicine)
3636 HIGH ST
PORTSMOUTH, VA 23707
Hospitalist
3636 HIGH ST
PORTSMOUTH, VA 23707

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 Mark Innis's NPI number?

The NPI number for Mark Innis is 1740450220. It was assigned to this individual provider in the NPPES registry on March 11, 2008.

Where is Mark Innis located?

Mark Innis practices at 3636 High St, Portsmouth, VA 23707. The listed phone number is (757) 398-2200.

What is Mark Innis's specialty?

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

Is Mark Innis enrolled in Medicare?

Yes. Mark Innis is registered in the Medicare PECOS enrollment system.

What insurance does Mark Innis accept?

Health plans from Oscar Insurance Company list Mark Innis 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 Mark Innis affiliated with any hospitals?

According to CMS data, Mark Innis is affiliated with Brookdale Hospital Medical Center, Sentara Albemarle Medical Center, Bon Secours Maryview Medical Center and Sovah Health Danville.

When was this NPI record last updated?

The NPPES record for Mark Innis was last updated on April 3, 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.