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DR. MARK C LITTLEJOHN MD
NPI 1932176252
Otolaryngology in Frisco, TX

Active since March 06, 2006PECOS EnrolledAccepts Medicare Assignment
8380 WARREN PKWY STE 504, FRISCO, TX 75034(972) 596-4005(972) 985-1253 Get Directions Write a Review

NPPES record last updated: November 28, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark C Littlejohn Md NPPES

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

DR. MARK C LITTLEJOHN MD (NPI 1932176252) is an individual otolaryngology provider in Frisco, Texas, licensed in Texas (H5784) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Christus Good Shepherd Medical Center, and is a graduate of University Of Texas Medical Branch At Galveston (1988).

NPPES Registry Identity

NPI1932176252
Entity TypeIndividualMale
Primary Taxonomy207Y00000X
Provider Legal NameDR. MARK C LITTLEJOHNCredential: MD
Location Address8380 WARREN PKWY STE 504Frisco, TX 75034
Mailing Address8380 Warren Pkwy Ste 504Frisco, TX 75034-4253 · (972) 596-4005 · Fax (972) 985-1253
Phone(972) 596-4005
Fax(972) 985-1253
Sole ProprietorYes
Medical School CMSUniversity Of Texas Medical Branch At GalvestonGraduated 1988
Enumeration DateMarch 6, 2006
Last NPPES UpdateNovember 28, 2018
✔ NPI 1932176252 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians
Taxonomy Code207Y00000X
License✔ Licensed in TX · H5784
Definition
An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.
8380 WARREN PKWY STE 504, Frisco, TX 75034
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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 Texas, CHRISTUS Health Plan, UnitedHealthcare.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

Dr. Mark C Littlejohn Md 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 ID6608834585
PECOS Enrollment IDI20041222000837
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 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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
208 services208 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
190 services190 patients
Diagnostic exam of voice box using a flexible endoscope 31575
This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.
105 services97 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.
89 services83 patients
Removal of impacted ear wax 69210
Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.
70 services67 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.
61 services60 patients

Hospital Affiliations CMS Care Compare 3

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

Christus Good Shepherd Medical Center

Acute Care Hospitals · Longview, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450032
Location700 E Marshall AveLongview, TX 75601 · Gregg County
Emergency services Birthing friendly

Christus Mother Frances Hospital

Acute Care Hospitals · Tyler, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450102
Location800 East DawsonTyler, TX 75701 · Smith County
Emergency services Birthing friendly

Longview Regional Medical Center

Acute Care Hospitals · Longview, TX
2/5 CMS rating
OwnershipProprietary
CMS Certification Number450702
Location2901 N Fourth StLongview, TX 75605 · Gregg County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75034 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
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.

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.

Filter, disposable, used with positive airway pressure device A7038
DME-Other DME · category DE001N
2 suppliers11 claims66 services$1.81 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.

DR. TONY PETER MD
Otolaryngology
8380 WARREN PKWY STE 504
FRISCO, TX 75034
Denton County (972) 596-4005
TONY K. PETER MD PLLC
Otolaryngology
8380 WARREN PKWY STE 504
FRISCO, TX 75034
Denton County (972) 596-4005
COLLIN COUNTY ENT
Otolaryngology
8380 WARREN PKWY STE 504
FRISCO, TX 75034
Denton County (972) 596-4005

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 Littlejohn's NPI number?

The NPI number for Mark Littlejohn is 1932176252. It was assigned to this individual provider in the NPPES registry on March 6, 2006.

Where is Mark Littlejohn located?

Mark Littlejohn practices at 8380 Warren Pkwy Ste 504, Frisco, TX 75034. The listed phone number is (972) 596-4005.

What is Mark Littlejohn's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Mark Littlejohn enrolled in Medicare?

Yes. Mark Littlejohn 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 Mark Littlejohn accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan and UnitedHealthcare list Mark Littlejohn 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 Littlejohn affiliated with any hospitals?

According to CMS data, Mark Littlejohn is affiliated with Christus Good Shepherd Medical Center, Christus Mother Frances Hospital and Longview Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Mark Littlejohn was last updated on November 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.