HIGH RISK OBSTETRICAL CONSULTANTS, PLLC
NPI 1770724676
Obstetrics & Gynecology - Maternal & Fetal Medicine in Knoxville, TN

Active since March 23, 2009CLIA Certified · 2 labs
1930 ALCOA HWY STE A435, KNOXVILLE, TN 37920(865) 263-2400(865) 263-2441 Get Directions Write a Review

NPPES record last updated: December 15, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 15, 2022, Sep 14, 2016 (2 updates tracked since 2016).

About High Risk Obstetrical Consultants, Pllc NPPES

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

HIGH RISK OBSTETRICAL CONSULTANTS, PLLC (NPI 1770724676) is a healthcare organization registered as a maternal & fetal medicine in Knoxville, Tennessee and active in the NPI registry since March 2009. The organization holds 2 active CLIA laboratory certificates and lists Mark D Hennessy, Owner, as its authorized official.

NPPES Registry Identity

NPI1770724676
Entity TypeOrganization
Primary Taxonomy207VM0101X
Legal Business NameHIGH RISK OBSTETRICAL CONSULTANTS, PLLC
Location Address1930 ALCOA HWY STE A435Knoxville, TN 37920-1520
Mailing Address1930 Alcoa Hwy Ste A435Knoxville, TN 37920-1520 · (865) 263-2400 · Fax (865) 263-2441
Fax(865) 263-2441
Organization SubpartNo
Authorized OfficialMark D HennessyOwner · (865) 263-2400
Enumeration DateMarch 23, 2009
Last NPPES UpdateDecember 15, 20222 updates tracked since enumeration
NPPES CertifiedDecember 15, 2022
✔ NPI 1770724676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
1930 ALCOA HWY STE A435, Knoxville, TN 37920

Other Identifiers 1

Medicaid1513354TN

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

High Risk Obstetrical Consultants, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

21

Medicare enrollment records show 21 clinicians reassign Medicare billing to High Risk Obstetrical Consultants, PLLC, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 13 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 2

Obstetrics/Gynecology13
Nurse Practitioner8

Nearest to this location (20)

See all 21
Obstetrics/Gynecology
NPI 1639337306
1930 ALCOA HWY STE 435
Knoxville, TN 37920
(865) 263-2400
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1548652548
1930 ALCOA HWY STE 435
Knoxville, TN 37920
(865) 263-2400
✔ PECOSSame address
Nurse Practitioner
NPI 1427911619
1930 ALCOA HWY STE 435
Knoxville, TN 37920
(865) 263-2400
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1992704357
1930 ALCOA HWY STE A435
Knoxville, TN 37920
(865) 263-2400
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1083065932
1930 ALCOA HWY BUILDING A SUITE 435
Knoxville, TN 37920
(865) 305-8888
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1528589835
1930 ALCOA HWY STE A435
Knoxville, TN 37920
(865) 263-2400
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1194710467
1924 ALCOA HWY SUITE 6-SOUTH
Knoxville, TN 37920
(865) 305-8888
✔ PECOS✔ Accepts MedicareSame address
Obstetrics/Gynecology
NPI 1144200064
1924 ALCOA HWY SOUTH 6-SOUTH
Knoxville, TN 37920
(865) 305-8888
✔ PECOSSame address
Obstetrics/Gynecology
NPI 1467831396
1924 ALCOA HWY # U-27
Knoxville, TN 37920
(865) 305-9306
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1083747703
1924 ALCOA HWY 6 SOUTH
Knoxville, TN 37920
(865) 305-8888
✔ PECOS0.2 mi
Obstetrics/Gynecology
NPI 1548571540
1930 ALCOA HWY STE 435
Knoxville, TN 37920
(865) 305-8888
✔ PECOS✔ Accepts Medicare0.2 mi
Obstetrics/Gynecology
NPI 1043332463
1925 ALCOA HWY SUITE 6-SOUTH
Knoxville, TN 37920
(865) 305-8888
✔ PECOS✔ Accepts Medicare0.4 mi
Nurse Practitioner
NPI 1972037000
2018 WESTERN AVE
Knoxville, TN 37921
(865) 544-0406
✔ PECOS1.8 mi
Nurse Practitioner
NPI 1053899534
2335 KNOB CREEK RD STE 100
Johnson City, TN 37604
(423) 430-9942
✔ PECOS91 mi
Nurse Practitioner
NPI 1952906224
2335 KNOB CREEK RD STE 100
Johnson City, TN 37604
(423) 430-9942
✔ PECOS91 mi
Obstetrics/Gynecology
NPI 1003330572
2335 KNOB CREEK RD STE 100
Johnson City, TN 37604
(423) 430-9942
✔ PECOS✔ Accepts Medicare91 mi
Obstetrics/Gynecology
NPI 1821225327
2335 KNOB CREEK RD STE 100
Johnson City, TN 37604
(423) 430-9942
✔ PECOS✔ Accepts Medicare91 mi
Obstetrics/Gynecology
NPI 1033217930
3601 TVC
Nashville, TN 37232
(615) 322-3000
✔ PECOS✔ Accepts Medicare160 mi
Nurse Practitioner
NPI 1245792092
3601 THE VANDERBILT CLINIC
Nashville, TN 37232
(615) 322-3000
✔ PECOS161 mi
Obstetrics/Gynecology
NPI 1093211849
1700 6TH AVE S STE 10270
Birmingham, AL 35233
(205) 934-4226
✔ PECOS✔ Accepts Medicare234 mi
See all 21 clinicians

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

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 44D2278578

High Risk Obstetrical Consultants, PLLC · Cookeville, TN
Active · expires Mar 20, 2027
CLIA Number44D2278578
Laboratory TypePhysician Office
Certificate Effective DateMarch 21, 2025
Certificate Expiration DateMarch 20, 2027
Laboratory DirectorMark D. Hennessy
Laboratory Phone(865) 263-2400
Laboratory LocationHigh Risk Obstetrical Consultants, PLLC225 N Willow Ave, Suite 8, Cookeville, TN 38501
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 44D0956380

High Risk Obstetrical Consultants, PLLC · Knoxville, TN
Active · expires Jan 26, 2027
CLIA Number44D0956380
Laboratory TypePhysician Office
Certificate Effective DateJanuary 27, 2025
Certificate Expiration DateJanuary 26, 2027
Laboratory DirectorDr. Mark D. Hennessy
Laboratory Phone(865) 305-8888
Laboratory LocationHigh Risk Obstetrical Consultants, PLLC1930 Alcoa Hwy Bldg A Ste 435, Knoxville, TN 37920
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

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 High Risk Obstetrical Consultants, PLLC's NPI number?

The NPI number for High Risk Obstetrical Consultants, PLLC is 1770724676. It was assigned to this organization in the NPPES registry on March 23, 2009.

Where is High Risk Obstetrical Consultants, PLLC located?

High Risk Obstetrical Consultants, PLLC is located at 1930 Alcoa Hwy Ste A435, Knoxville, TN 37920. The listed phone number is (865) 263-2400.

What is High Risk Obstetrical Consultants, PLLC's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is High Risk Obstetrical Consultants, PLLC enrolled in Medicare?

Yes. High Risk Obstetrical Consultants, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through High Risk Obstetrical Consultants, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 21 clinicians in 2 Medicare specialties reassign their Medicare billing to High Risk Obstetrical Consultants, PLLC. A 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 the clinician's services. The largest specialties are Obstetrics/Gynecology (13) and Nurse Practitioner (8). Of these, 9 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does High Risk Obstetrical Consultants, PLLC hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does High Risk Obstetrical Consultants, PLLC accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee list High Risk Obstetrical Consultants, PLLC 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.

When was this NPI record last updated?

The NPPES record for High Risk Obstetrical Consultants, PLLC was last updated on December 15, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.