Dr Ewan Douglas Johnson, MD, PHD - Medicare Internal Medicine in Tomball, TX

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Dr Ewan Douglas Johnson, MD, PHD is a medicare enrolled "Internal Medicine" physician in Tomball, Texas. He went to University Of Texas Medical Branch At Galveston and graduated in 2004 and has 21 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Concord Medical Group Of Texas Pllc and his current practice location is 13414 Medical Complex Dr Ste 6, Tomball, Texas. You can reach out to his office (for appointments etc.) via phone at (281) 415-6687.

Dr Ewan Douglas Johnson is licensed to practice in Texas (license number N8018) 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 1043521313.

Contact Information

Dr Ewan Douglas Johnson, MD, PHD
13414 Medical Complex Dr Ste 6,
Tomball, TX 77375-3333
(281) 415-6687
Not Available

Map and Direction




Physician's Profile

Full NameDr Ewan Douglas Johnson
GenderMale
SpecialityInternal Medicine
Experience21 Years
Location13414 Medical Complex Dr Ste 6, Tomball, 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 Ewan Douglas Johnson attended and graduated from University Of Texas Medical Branch At Galveston in 2004
  NPI Data:
  • NPI Number: 1043521313
  • Provider Enumeration Date: 07/01/2010
  • Last Update Date: 06/11/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8820113475
  • Enrollment ID: I20100920000379

Medical Identifiers

Medical identifiers for Dr Ewan Douglas Johnson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1043521313NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine N8018 (Texas)Secondary
207RX0202XInternal Medicine - Medical Oncology N8018 (Texas)Secondary
207R00000XInternal Medicine N8018 (Texas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Reeves County Hospital DistrictPecos, TXHospital
Columbus Community HospitalColumbus, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Concord Medical Group Of Texas Pllc7810117223238

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 Ewan Douglas Johnson allows following entities to bill medicare on his behalf.
Entity NameMuenster Hospital District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972556009
PECOS PAC ID: 6608785993
Enrollment ID: O20031106000571
Entity NameConcord Medical Group Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083630610
PECOS PAC ID: 0446296818
Enrollment ID: O20050707000531
Entity NameTomball Regional Internal Medicine Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457569741
PECOS PAC ID: 0042384695
Enrollment ID: O20080731000207
Entity NameHospitalist Medicine Physicians Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629307095
PECOS PAC ID: 3476688318
Enrollment ID: O20100317001021
Entity NameConcord Medical Group Of Texas Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750790762
PECOS PAC ID: 7810117223
Enrollment ID: O20141007002567
Entity NameEmergency Hospital Systems Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992172019
PECOS PAC ID: 2567765761
Enrollment ID: O20170607000131
Entity NameTk Emergency Physicians Group Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942728019
PECOS PAC ID: 2567799091
Enrollment ID: O20190807000556

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 Ewan Douglas Johnson 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 Ewan Douglas Johnson, MD, PHD
13414 Medical Complex Dr Ste 6,
Tomball, TX 77375-3333

Ph: (281) 516-0212		Dr Ewan Douglas Johnson, MD, PHD
13414 Medical Complex Dr Ste 6,
Tomball, TX 77375-3333

Ph: (281) 415-6687

Reviews and Comments


Internal Medicine Doctors in Tomball, TX

Saad M Al-saab, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 425 Holderrieth Blvd Ste 118, Tomball, TX 77375
Phone: 832-838-6088    Fax: 832-838-0922
Dr. Asiya Ahmed, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 455 School St, Suite 27, Tomball, TX 77375
Phone: 281-357-0666    Fax: 281-357-2740
Mr. Reehan Shahzad, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 929 Graham Dr Ste B, Tomball, TX 77375
Phone: 281-290-0222    Fax: 281-290-0233
Dr. Ali Raza, M.D
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 455 School St Ste 15, Tomball, TX 77375
Phone: 281-971-0314    
Dr. Mark D. Le, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 602 Lawrence Street, B, Tomball, TX 77375
Phone: 281-255-6333    Fax: 281-255-6335
Ahmad Adnan Aslam, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 308 Holderrieth Blvd, Tomball, TX 77375
Phone: 281-351-4911    Fax: 281-351-4915
Dr. Roy Edward Norman Jr., D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 308 Holderrieth Blvd, Tomball, TX 77375
Phone: 281-351-4911    Fax: 281-351-4915

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.