John Karl Blum, DO
Family Medicine Physician · Houston, TX
John Karl Blum, DO is a family medicine physician with a practice address in Houston, Texas, and NPI 1437220886, issued on Nov 9, 2006. Check the license (Texas E4213, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Karl Blum
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- E4213 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1618 West 18TH St, Houston, TX 77008
- Phone
- (713) 802-4357
- Enumerated
- Nov 9, 2006
- Record last updated
- Oct 13, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (713) 802-2659
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Verify John Karl Blum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license E4213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John Karl Blum among 11,119 family medicine physician records in Texas
John Karl Blum, DO is one of 11,119 family 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 not. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileNo · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2008 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,123 family medicine physician records list a practice address in Houston
They are 1,123 of the 61,221 NPPES records with a practice address in Houston, and 11,119 family medicine physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 11,119 in Texas → Every provider in Houston → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Saleha Ahmed, M.D.Houston, TX 770081710917380
- Christopher Angelo, D.O.Houston, TX 770081457394850
- Virgilio Carandang, MDHouston, TX 770081821037250
- John Giglio, M.D.Houston, TX 770081730178013
- Lisa Holloway, D.O.Houston, TX 770081548292360
- Adnan Hussein, MDHouston, TX 770081730299124
- Trung Le, M.D.Houston, TX 770081659336931
- Jorge Luengas, MDHouston, TX 770081407878879
Common questions
What is John Karl Blum, DO's NPI number?
John Karl Blum, DO's National Provider Identifier (NPI) is 1437220886, issued on Nov 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Karl Blum, DO located?
The NPPES record lists a practice address at 1618 West 18TH St, Houston, TX, 77008. Phone: (713) 802-4357. Providers update this record themselves, so call before visiting.
How can I verify John Karl Blum, DO's license?
NPPES lists Texas license number E4213, 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. 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.