DR. MARK A. JEFFRIES (D.O.) – Gastroenterology Physician, NPI 1477513950

DR. MARK A. JEFFRIES (D.O.) is a healthcare provider. based in Dallas, Texas. specializing in INTERNAL MEDICINE, GASTROENTEROLOGY. They hold the professional credentials D.O.. They hold a License No. K9309 (TX). The NPI Number for DR. MARK A. JEFFRIES (D.O.) is 1477513950

Main info

Male
41 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARK A. JEFFRIES (D.O.)
NPI
1477513950
Phone
(254) 724-2111
Address
PO BOX 844658
Enumeration Date
27 March 2006
Last Update Date
3 March 2026

Doctor Profile

Medical School Name
TEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Secondary Phone
-
Graduation Year
1985 (41 years ago)
PAC ID
1456329689
Professional Enrollment ID
I20040924000074
Address ID
TX765027092TE5701XRDXX300

Contacts

Secure Messaging
mjeffries11477@direct.sw.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness95
Years active:20State licenses:1Other names

13,290 INTERNAL MEDICINE in TX

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Provider Addresses for DR. MARK A. JEFFRIES (D.O.)

  • Band Box Place, Dallas, Dallas County, Texas, 75244, United States

    DALLAS, TX 752844658

    Phone: (254) 724-2111

    Type: Mailing

  • Baylor Scott & White Medical Center - Temple, 2401, South 31st Street, Temple, Bell County, Texas, 76508, United States

    TEMPLE, TX 765080001

    Phone: (254) 724-2111

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
45385Removal of polyps or growths of large bowel using an endoscope with mechanical snare6969$0
99222Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes4242$0
99214Established patient office or other outpatient visit, 30-39 minutes3939$0
43239Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope3736$0
99215Established patient office or other outpatient visit, 40-54 minutes3227$0
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Insurance plans in this area (ZIP 75284)

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Provider's Procedures

DR. MARK A. JEFFRIES (D.O.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINETX43235Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope7474
INTERNAL MEDICINETX45378Diagnostic examination of large bowel using an endoscope2929
INTERNAL MEDICINETX45385Removal of polyps or growths of large bowel using an endoscope7171

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Frequently asked questions

How do I look up DR. MARK A. JEFFRIES (D.O.) by NPI?
Use NPI 1477513950 when you need to reference DR. MARK A. JEFFRIES (D.O.) in forms, claims, or directories.
Is DR. MARK A. JEFFRIES (D.O.)'s NPI currently valid?
The extract we use shows DR. MARK A. JEFFRIES (D.O.) as active.
Can you summarize DR. MARK A. JEFFRIES (D.O.)'s specialty in plain language?
Clinically, the directory lists DR. MARK A. JEFFRIES (D.O.) with Gastroenterology Physician. Clinical services aligned with this taxonomy classification.
Where does public data place DR. MARK A. JEFFRIES (D.O.)?
The snapshot lists Dallas, Texas for DR. MARK A. JEFFRIES (D.O.); download NPPES for the complete set.
Is this NPI for an individual or an organization?
This listing corresponds to an Individual Provider.

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