Juanita Castillo
Internal Medicine Physician · Woodway, TX
Juanita Castillo is an internal medicine physician with a practice address in Woodway, Texas, and NPI 1750554093, issued on Apr 8, 2008. Check the license (Texas P2836, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Juanita Castillo
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- P2836 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8416 Old Mcgregor RD, Woodway, TX 76712
- Phone
- (254) 307-3997
- Enumerated
- Apr 8, 2008
- Record last updated
- Dec 18, 2024
- Fax
- (254) 300-9935
- Medicare enrollment
- Enrolled (PECOS I20120820000997); accepts Medicare assignment
- Medical or professional school
- Texas A & M University System, Hsc, College Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 8416 Old Mcgregor RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adam Flowers, MDFamily Medicine Physician1053443788
- Elizabeth Lawson, PA-CPhysician Assistant1356516280
- Angelina RodriguezGerontology Nurse Practitioner1275076697
- Kenneth Waite, D.O.Emergency Medicine Physician1194037754
- Barbara Weir, APRNFamily Nurse Practitioner1376861476
Verify Juanita Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P2836Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average internal medicine physician in 2024
3,444 Medicare Part D claims for 229 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 14 claims were for opioids.
Most prescribed
- Atorvastatin Calcium259 claims
- Ozempic158 claims
- Metformin Hcl Er154 claims
- Ezetimibe113 claims
- Amlodipine Besylate110 claims
- Lisinopril110 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: $112.75
4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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 one group practice
- Vesper Medical Care PLLCWoodway, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Juanita Castillo among 9,175 internal medicine physician records in Texas
Juanita Castillo 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 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 46% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2008 · median 2004 among the 6,088 with a school on file
- Record last updated2024 · 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).
2 internal medicine physician records list a practice address in Woodway
They are 2 of the 238 NPPES records with a practice address in Woodway, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Woodway → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gary Barbin, MDWaco, TX 767121568436780
- James Copeland, MDWaco, TX 767121174597348
- Roger Cowart, MDWaco, TX 767121750391546
- Joe Cunningham, M. D.Waco, TX 767121639395676
- Steven Elwell, MDWaco, TX 767121336112556
- James Hodges, MDWaco, TX 767121962441600
- Twiladawn Lovett, M.D.Waco, TX 767121649296161
- Vikas Patel, M.D.Waco, TX 767121083634356
Common questions
What is Juanita Castillo's NPI number?
Juanita Castillo's National Provider Identifier (NPI) is 1750554093, issued on Apr 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Juanita Castillo located?
The NPPES record lists a practice address at 8416 Old Mcgregor RD, Woodway, TX, 76712. Phone: (254) 307-3997. Providers update this record themselves, so call before visiting.
How can I verify Juanita Castillo's license?
NPPES lists Texas license number P2836, 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 Juanita Castillo prescribe under Medicare Part D?
In 2024, Juanita Castillo had 3,444 Medicare Part D claims for 229 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.