Cathy A. Castillo, MD
Family Medicine Physician · Pflugerville, TX
Cathy A. Castillo, MD is a family medicine physician with a practice address in Pflugerville, Texas, and NPI 1295787778, issued on May 16, 2006. Check the license (Texas M2279, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cathy A. Castillo
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- M2279 TX
Self-reported in NPPES; status is on the state search - Practice location
- 15803 Windermere Dr Ste 102, Pflugerville, TX 78660
- Phone
- (512) 989-2680
- Enumerated
- May 16, 2006
- Record last updated
- Mar 20, 2023
- Fax
- (512) 406-7339
- Medicaid IDs
- 177278202 TX
177278204 TX
177278203 TX
177278206 TX - Medicare enrollment
- Enrolled (PECOS I20051017000934); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 15803 Windermere Dr Ste 102
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gowrishankar Gnanasekaran, MDInternal Medicine Physician1205004868
- Sarah Wilke, APRN-CNPPrimary Care Nurse Practitioner1144848516
Verify Cathy A. Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M2279Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average family medicine physician in 2024
9,335 Medicare Part D claims for 855 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 24 claims were for opioids.
Most prescribed
- Atorvastatin Calcium713 claims
- Levothyroxine Sodium462 claims
- Amlodipine Besylate409 claims
- Lisinopril302 claims
- Losartan Potassium261 claims
- Metformin Hcl Er242 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: $372.08
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 55,478 providers of this specialty with any payment received $902.55 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
- Austin Regional Clinic PAHutto, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cathy A. Castillo among 11,119 family medicine physician records in Texas
Cathy A. Castillo, MD 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. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2000 · median 2004 among the 7,095 with a school on file
- Record last updated2023 · 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).
21 family medicine physician records list a practice address in Pflugerville
They are 21 of the 915 NPPES records with a practice address in Pflugerville, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Pflugerville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Merlin Abraham, MDPflugerville, TX 786601417215757
- John Boyd, M.D.Pflugerville, TX 786601174522296
- Juan Davila, M.D.Pflugerville, TX 786601215297155
- Wei-Ann Lin, M.D.Pflugerville, TX 786601730144403
- Erik Lystad, MDPflugerville, TX 786601740574581
- Madhuri Madabhushi, M.D.Pflugerville, TX 786601780841817
- Radha Mahale, MDPflugerville, TX 786601053372193
- William Medrano, MDPflugerville, TX 786601619083342
Common questions
What is Cathy A. Castillo, MD's NPI number?
Cathy A. Castillo, MD's National Provider Identifier (NPI) is 1295787778, issued on May 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathy A. Castillo, MD located?
The NPPES record lists a practice address at 15803 Windermere Dr Ste 102, Pflugerville, TX, 78660. Phone: (512) 989-2680. Providers update this record themselves, so call before visiting.
How can I verify Cathy A. Castillo, MD's license?
NPPES lists Texas license number M2279, 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 Cathy A. Castillo, MD prescribe under Medicare Part D?
In 2024, Cathy A. Castillo, MD had 9,335 Medicare Part D claims for 855 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.