Bill (william) George Becks McCallum, M.D.
Internal Medicine Physician · Houston, TX
Bill (william) George Becks McCallum, M.D. is an internal medicine physician with a practice address in Houston, Texas, and NPI 1336286756, issued on Feb 1, 2007. Check the license (Texas G2776, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Bill (william) George Becks McCallum
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G2776 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6624 Fannin St, Houston, TX 77030
- Phone
- (713) 796-1221
- Enumerated
- Feb 1, 2007
- Record last updated
- Jul 12, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 6624 Fannin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Helen Akpan, NPNurse Practitioner1548614886
- Hiba Ali, MDHospitalist Physician1811426653
- Sumera Ali, P.A.Physician Assistant1144657578
- Mark Amerman, OPA-CPhysician Assistant1073703740
- Bahaa AwadaAdult Health Nurse Practitioner1497110621
Verify Bill (william) George Becks McCallum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G2776Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $120.73
5 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bill (william) George Becks McCallum among 9,175 internal medicine physician records in Texas
Bill (william) George Becks McCallum, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2007 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,488 internal medicine physician records list a practice address in Houston
They are 1,488 of the 61,221 NPPES records with a practice address in Houston, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Houston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ketti Awad, MDHouston, TX 770301740284710
- Parikshet Babber, MDHouston, TX 770301114915816
- James Baker, MDHouston, TX 770301477549566
- Ana Blackmon, M.D.Houston, TX 770301962402446
- Maria Cruz-Carreras, MDHouston, TX 770301376533893
- Marina George, MDHouston, TX 770301780680009
- Barry Goodfriend, MDHouston, TX 770301588666218
- Betty Halpern, MDHouston, TX 770301942292685
Common questions
What is Bill (william) George Becks McCallum, M.D.'s NPI number?
Bill (william) George Becks McCallum, M.D.'s National Provider Identifier (NPI) is 1336286756, issued on Feb 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Bill (william) George Becks McCallum, M.D. located?
The NPPES record lists a practice address at 6624 Fannin St, Houston, TX, 77030. Phone: (713) 796-1221. Providers update this record themselves, so call before visiting.
How can I verify Bill (william) George Becks McCallum, M.D.'s license?
NPPES lists Texas license number G2776, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.