Dr Nicole A Williamson, MD - Medicare Internal Medicine in Altus, OK

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Dr Nicole A Williamson, MD is a medicare enrolled "Internal Medicine" physician in Altus, Oklahoma. She went to Tufts University School Of Medicine and graduated in 2006 and has 18 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Hospitalist Medicine Physicians Of Texas Pllc, Metro Physicians Llc, Oklahoma Hospital Medicine Physicians Llc and her current practice location is 1200 E Pecan St, Altus, Oklahoma. You can reach out to her office (for appointments etc.) via phone at (580) 379-5000.

Dr Nicole A Williamson is licensed to practice in Oklahoma (license number 28279) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1518136183.

Contact Information

Dr Nicole A Williamson, MD
1200 E Pecan St,
Altus, OK 73521-6192
(580) 379-5000
(580) 379-5509

Map and Direction




Physician's Profile

Full NameDr Nicole A Williamson
GenderFemale
SpecialityInternal Medicine
Experience18 Years
Location1200 E Pecan St, Altus, Oklahoma
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Nicole A Williamson attended and graduated from Tufts University School Of Medicine in 2006
  NPI Data:
  • NPI Number: 1518136183
  • Provider Enumeration Date: 02/27/2008
  • Last Update Date: 05/03/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5597934380
  • Enrollment ID: I20110811000860

Medical Identifiers

Medical identifiers for Dr Nicole A Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518136183NPI-NPPES
871952MedicaidSC
SCP4019068OtherSCMEDICARE PIN
200335530AMedicaidOK
SCP4015019OtherSCMEDICARE PIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 87195 (South Carolina)Secondary
207R00000XInternal Medicine 28279 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Integris Southwest Medical CenterOklahoma city, OKHospital
Ssm Health St Anthony Hospital - Oklahoma CityOklahoma city, OKHospital
Southwestern Medical CenterLawton, OKHospital
Integris Baptist Medical Center, IncOklahoma city, OKHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hospitalist Medicine Physicians Of Texas Pllc3476688318951
Metro Physicians Llc115379481338
Oklahoma Hospital Medicine Physicians Llc9830510023110

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 Nicole A Williamson allows following entities to bill medicare on her behalf.
Entity NameNortheastern Health System
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457574170
PECOS PAC ID: 1456255025
Enrollment ID: O20031125000250
Entity NameHcc Duncan Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013153543
PECOS PAC ID: 1759447873
Enrollment ID: O20090225000497
Entity NameQuestcare Hospitalists Oklahoma Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578909388
PECOS PAC ID: 6901049022
Enrollment ID: O20130821000297
Entity NameHospitalist Medicine Physicians Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629307095
PECOS PAC ID: 3476688318
Enrollment ID: O20180326002260
Entity NameOklahoma Hospital Medicine Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871113761
PECOS PAC ID: 9830510023
Enrollment ID: O20200526000785
Entity NameCogent Healthcare Of Texas Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992722953
PECOS PAC ID: 8628076924
Enrollment ID: O20210209000102
Entity NameEmerus Oklahoma Hospitalists Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124799952
PECOS PAC ID: 3577958834
Enrollment ID: O20220323001311
Entity NameMetro Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588374797
PECOS PAC ID: 1153794813
Enrollment ID: O20230227002752

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 Nicole A 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 Nicole A Williamson, MD
1200 E Pecan St,
Altus, OK 73521-6141

Ph: (580) 379-5000		Dr Nicole A Williamson, MD
1200 E Pecan St,
Altus, OK 73521-6192

Ph: (580) 379-5000

Reviews and Comments


Internal Medicine Doctors in Altus, OK

Dr. Sung Deuk Kim, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1200 E Pecan St, Altus, OK 73521
Phone: 580-379-5000    Fax: 580-379-5999
Willard Perez, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 201 S Park Ln, Altus, OK 73521
Phone: 580-482-9020    Fax: 580-480-3113
Addi S Abuelshar, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1200 E Pecan, Jcmh/ Hospitalist Office, Altus, OK 73521
Phone: 580-379-5992    Fax: 580-379-5999
Dr. Joe L Leverett, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 205 S Park Ln, Altus, OK 73521
Phone: 580-379-6650    Fax: 580-379-6659
Nizar Ghazi Al-nimri, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1200 E Pecan St, Altus, OK 73521
Phone: 580-379-5000    Fax: 580-379-5999

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.