Cathy Sue Malouf, MD
Internal Medicine Physician · Lubbock, TX
Cathy Sue Malouf, MD is an internal medicine physician with a practice address in Lubbock, Texas, and NPI 1538124334, issued on Apr 18, 2006. Check the license (Texas K0517, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cathy Sue Malouf
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- K0517 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3711 22ND St Ste A, Lubbock, TX 79410
- Phone
- (806) 777-4204
- Enumerated
- Apr 18, 2006
- Record last updated
- Jun 13, 2025
- Medicaid ID
- 125627305 TX
- Medicare enrollment
- Enrolled (PECOS I20101117000821); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Verify Cathy Sue Malouf in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K0517Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average internal medicine physician in 2024
6,641 Medicare Part D claims for 315 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 252 claims were for opioids.
Most prescribed
- Levothyroxine Sodium411 claims
- Atorvastatin Calcium215 claims
- Gabapentin167 claims
- Lisinopril167 claims
- Rosuvastatin Calcium156 claims
- Trazodone Hcl139 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.
Cathy Sue Malouf among 9,175 internal medicine physician records in Texas
Cathy Sue Malouf, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1995 · median 2004 among the 6,088 with a school on file
- Record last updated2025 · 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).
116 internal medicine physician records list a practice address in Lubbock
They are 116 of the 5,735 NPPES records with a practice address in Lubbock, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Lubbock → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Revati Atluri, MDLubbock, TX 794101518034412
- Jeremy Brown, M.D.Lubbock, TX 794101861630824
- Steven Combs, MDLubbock, TX 794101477518264
- Rita Corona, MDLubbock, TX 794101336302173
- Chidiebere EchenduLubbock, TX 794101366733925
- Anne Epstein, MDLubbock, TX 794101427152602
- Hal Green, MDLubbock, TX 794101528035318
- Kenneth Kruczek, D.OLubbock, TX 794101306849419
Common questions
What is Cathy Sue Malouf, MD's NPI number?
Cathy Sue Malouf, MD's National Provider Identifier (NPI) is 1538124334, issued on Apr 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Sue Malouf, MD located?
The NPPES record lists a practice address at 3711 22ND St Ste A, Lubbock, TX, 79410. Phone: (806) 777-4204. Providers update this record themselves, so call before visiting.
How can I verify Cathy Sue Malouf, MD's license?
NPPES lists Texas license number K0517, 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 Sue Malouf, MD prescribe under Medicare Part D?
In 2024, Cathy Sue Malouf, MD had 6,641 Medicare Part D claims for 315 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.