John Jacob, MD
Internal Medicine Physician · Pflugerville, TX
John Jacob, MD is an internal medicine physician with a practice address in Pflugerville, Texas, and NPI 1386176691, issued on Mar 28, 2017. Check the license (Texas T0523, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Jacob
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- T0523 TX
Self-reported in NPPES; status is on the state search - Practice location
- 2600 E Pflugerville Pkwy Bldg 2, Pflugerville, TX 78660
- Phone
- (512) 654-6500
- Enumerated
- Mar 28, 2017
- Record last updated
- Jan 21, 2026
- Medicare enrollment
- Enrolled (PECOS I20210614000942); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 2600 E Pflugerville Pkwy Bldg 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Jacob in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license T0523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,843 Medicare Part D claims for 244 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium92 claims
- Warfarin Sodium87 claims
- Nifedipine Er76 claims
- Gabapentin67 claims
- Pantoprazole Sodium62 claims
- Losartan Potassium60 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $797.76
40 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
Bills Medicare through 2 group practices
- Lsu Health Sciences Center Shreveport Faculty Group PracticeShreveport, LA
- Scott And White ClinicPflugerville, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Jacob among 9,175 internal medicine physician records in Texas
John Jacob, MD 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 2017, is newer than 77% of them.
- NPI issued2017 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2016 · median 2004 among the 6,088 with a school on file
- Record last updated2026 · 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).
18 internal medicine physician records list a practice address in Pflugerville
They are 18 of the 915 NPPES records with a practice address in Pflugerville, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Pflugerville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sara Bartos, MDPflugerville, TX 786601326254673
- Susan Brister, MDPflugerville, TX 786601033178751
- Yen Dao, D.O.Pflugerville, TX 786601770579203
- Yue Deng, MDPflugerville, TX 786601821292483
- Gowrishankar Gnanasekaran, MDPflugerville, TX 786601205004868
- Abhilasha Gupta, MDPflugerville, TX 786601225032931
- Mohammad Makkouk, MDPflugerville, TX 786601467864686
- Pooja Mehta, MDPflugerville, TX 786601922261585
Common questions
What is John Jacob, MD's NPI number?
John Jacob, MD's National Provider Identifier (NPI) is 1386176691, issued on Mar 28, 2017. An NPI identifies a provider in billing; it is not a license.
Where is John Jacob, MD located?
The NPPES record lists a practice address at 2600 E Pflugerville Pkwy Bldg 2, Pflugerville, TX, 78660. Phone: (512) 654-6500. Providers update this record themselves, so call before visiting.
How can I verify John Jacob, MD's license?
NPPES lists Texas license number T0523, 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.
How much does John Jacob, MD prescribe under Medicare Part D?
In 2024, John Jacob, MD had 1,843 Medicare Part D claims for 244 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.