MARY EMILY CHRISTIANSEN M.D.
NPI 1831543644
Obstetrics & Gynecology in Knoxville, TN

Active since April 18, 2016PECOS EnrolledAccepts Medicare Assignment
501 19TH ST STE 509, KNOXVILLE, TN 37916(865) 386-6508 Get Directions Write a Review

NPPES record last updated: October 5, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 5, 2021, Aug 18, 2020, Jul 24, 2020 (3 updates tracked since 2020).

About Mary Emily Christiansen M.d. NPPES

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

MARY EMILY CHRISTIANSEN M.D. (NPI 1831543644) is an individual obstetrics & gynecology provider in Knoxville, Tennessee, licensed in Tennessee (0000061138) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Fort Sanders Regional Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1831543644
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMARY EMILY CHRISTIANSENCredential: M.D.
Location Address501 19TH ST STE 509Knoxville, TN 37916-1874
Mailing Address501 19th St Ste 509Knoxville, TN 37916-1874 · (865) 524-3208 · Fax (865) 522-4322
Sole ProprietorYes
Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2016
Enumeration DateApril 18, 2016
Last NPPES UpdateOctober 5, 20213 updates tracked since enumeration
NPPES CertifiedJuly 9, 2021
NPI 1831543644 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in TN · 0000061138
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
501 19TH ST STE 509, Knoxville, TN 37916

Secondary Practice Locations 2

Location 1501 19th St Ste 501Knoxville, TN 37916-1874 · Phone (865) 524-3208 · Fax (865) 522-4322
Location 2University Of Tennessee, 920 Madison Ave Suite 447Memphis, TN 38163-0001 · Phone (901) 448-5814

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 and accepts Medicare assignment

Mary Emily Christiansen 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 ID8921397399
PECOS Enrollment IDI20201015000709
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

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.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
11 services11 patients

Hospital Affiliations CMS Care Compare

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

Fort Sanders Regional Medical Center

Acute Care Hospitals · Knoxville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440125
Location1901 W Clinch AveKnoxville, TN 37916 · Knox County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37916 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
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
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 4

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

Nurse Practitioner (Family)
501 19TH ST STE 509
KNOXVILLE, TN 37916
Nurse Practitioner (Obstetrics & Gynecology)
501 19TH ST STE 509
KNOXVILLE, TN 37916
Internal Medicine
501 19TH ST STE 509
KNOXVILLE, TN 37916
Obstetrics & Gynecology
501 19TH ST STE 509
KNOXVILLE, TN 37916

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 Mary Christiansen's NPI number?

The NPI number for Mary Christiansen is 1831543644. It was assigned to this individual provider in the NPPES registry on April 18, 2016.

Where is Mary Christiansen located?

Mary Christiansen practices at 501 19th St Ste 509, Knoxville, TN 37916. The listed phone number is (865) 386-6508.

What is Mary Christiansen's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Mary Christiansen enrolled in Medicare?

Yes. Mary Christiansen 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.

What insurance does Mary Christiansen accept?

Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Mary Christiansen 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 Mary Christiansen affiliated with any hospitals?

According to CMS data, Mary Christiansen is affiliated with Fort Sanders Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Christiansen was last updated on October 5, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.