Mark Johnston Williams, MD in Longview, TX

Mark Johnston Williams, MD is a medicare enrolled "Anesthesiology" physician in Longview, Texas. He graduated from medical school in 1986 and has 38 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Northstar Anesthesia Iii Pa and his current practice location is 2901 N. 4th St., Longview, Texas. You can reach out to his office (for appointments etc.) via phone at (903) 247-2050.

Mark Johnston Williams is licensed to practice in Texas (license number H3845) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1174590947.

Contact Information

	Mark Johnston Williams, MD
	2901 N. 4th St., Longview, TX 75605-5128
	(903) 247-2050
	(903) 934-8280

Map and Direction

Physician's Profile

Full Name	Mark Johnston Williams
Gender	Male
Speciality	Anesthesiology
Experience	38 Years
Location	2901 N. 4th St., Longview, Texas
Accepts Medicare Assignments	Yes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Mark Johnston Williams graduated from medical school in 1986

NPI Data:

NPI Number: 1174590947
Provider Enumeration Date: 03/01/2006
Last Update Date: 01/31/2023

Medicare PECOS Information:

PECOS PAC ID: 7517931207
Enrollment ID: I20050805000755

Medical Identifiers

Medical identifiers for Mark Johnston Williams such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1174590947	NPI	-	NPPES
138869601	Medicaid	TX

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207L00000X	Anesthesiology	H3845 (Texas)	Primary
207LP2900X	Anesthesiology - Pain Medicine	H3845 (Texas)	Secondary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Longview Regional Medical Center	Longview, TX	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Northstar Anesthesia Iii Pa	0042630501	338

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Mark Johnston Williams allows following entities to bill medicare on his behalf.

Entity Name	Horizon Anesthesia Associates
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1811982481 PECOS PAC ID: 5294725701 Enrollment ID: O20040517000478

Entity Name	Texas Ams Pllc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1174926125 PECOS PAC ID: 9133441769 Enrollment ID: O20141209001912

Entity Name	Northstar Anesthesia Iii Pa
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1356968952 PECOS PAC ID: 0042630501 Enrollment ID: O20201022000080

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Mark Johnston Williams is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Mark Johnston Williams, MD Po Box 614, Longview, TX 75606-0614 Ph: (903) 247-2050	Mark Johnston Williams, MD 2901 N. 4th St., Longview, TX 75605-5128 Ph: (903) 247-2050

Reviews and Comments

Anesthesiology Doctors in Longview, TX

Sayojirao Venkata Kodali, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 906 Judson Rd, Longview, TX 75601 Phone: 903-655-1313 Fax: 903-657-6067
Roger Seth Baker, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 2901 N. 4th St, Longview, TX 75605 Phone: 903-247-2050 Fax: 903-934-8280
Stanley Tunstall, M.D. Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 2901 N. 4th St, Longview, TX 75605 Phone: 903-247-2050 Fax: 903-934-8280
Allen Ross Morton, M.D. Anesthesiology Medicare: Not Enrolled in Medicare Practice Location: 703 E Marshall Ave, #4002, Longview, TX 75601 Phone: 903-247-2050 Fax: 903-247-2054
Mr. Michael Christopher Roberts, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 906 Judson Rd, Longview, TX 75601 Phone: 903-655-1313 Fax: 903-657-6067
Lamont Steven Berg, M.D. Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 703 E Marshall Ave, #4002, Longview, TX 75601 Phone: 903-247-2050 Fax: 903-247-2054

Mark Johnston Williams, MD - Medicare Anesthesiology in Longview, TX