Dr John Williamson, MD - Medicare Pain Management in Huntsville, TX

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Dr John Williamson, MD is a medicare enrolled "Pain Medicine - Pain Medicine" physician in Huntsville, Texas. He graduated from medical school in 1991 and has 34 years of diverse experience with area of expertise as Pain Management. He is a member of the group practice Wilco Theranet, Llc, Stephen M Sims Md Pa and his current practice location is 133 Medical Park Ln Ste B, Huntsville, Texas. You can reach out to his office (for appointments etc.) via phone at (936) 730-8833.

Dr John Williamson is licensed to practice in Texas (license number J2414) 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 1922069186.

Contact Information

Dr John Williamson, MD
133 Medical Park Ln Ste B,
Huntsville, TX 77340-4979
(936) 730-8833
(936) 730-8866

Map and Direction




Physician's Profile

Full NameDr John Williamson
GenderMale
SpecialityPain Management
Experience34 Years
Location133 Medical Park Ln Ste B, Huntsville, Texas
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr John Williamson graduated from medical school in 1991
  NPI Data:
  • NPI Number: 1922069186
  • Provider Enumeration Date: 03/29/2006
  • Last Update Date: 12/11/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 1254236151
  • Enrollment ID: I20100218000248

Medical Identifiers

Medical identifiers for Dr John Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1922069186NPI-NPPES
141581201MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208VP0000XPain Medicine - Pain Medicine J2414 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Aspire Behavioral Health Of Conroe, LlcConroe, TXHospital
Huntsville Memorial HospitalHuntsville, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Wilco Theranet, Llc2365531878107
Stephen M Sims Md Pa34766554995

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. Dr John Williamson allows following entities to bill medicare on his behalf.
Entity NameStephen M Sims Md Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235148172
PECOS PAC ID: 3476655499
Enrollment ID: O20070409000567
Entity NameConroe Ambulatory Anesthesia Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457482937
PECOS PAC ID: 0749464469
Enrollment ID: O20110405000119

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. Dr John Williamson 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 AddressPractice Location Address
Dr John Williamson, MD
4400 Fm 1061,
Amarillo, TX 79124-4716

Ph: () -		Dr John Williamson, MD
133 Medical Park Ln Ste B,
Huntsville, TX 77340-4979

Ph: (936) 730-8833

Reviews and Comments


Pain Medicine Doctors in Huntsville, TX

Stephen Michael Sims, MD
Pain Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 133 Medical Park Ln Ste B, Huntsville, TX 77340
Phone: 936-730-8833    Fax: 936-730-8866
Anisa Faruk Gopalani, M.D.
Pain Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 133 Medical Park Ln Ste B, Huntsville, TX 77340
Phone: 936-730-8833    Fax: 936-730-8866

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.