Ronald L. Maag, M.D.
Cardiovascular Disease Physician · Houston, TX
Ronald L. Maag, M.D. is a cardiovascular disease physician with a practice address in Houston, Texas, and NPI 1982998183, issued on Jun 6, 2011. Check the license (Texas R6435, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ronald L. Maag
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- R6435 TX
MD454678 PA
MT199959 PA
Self-reported in NPPES; status is on the state search - Practice location
- 7200 Cambridge St FL 6, Houston, TX 77030
- Phone
- (713) 798-2545
- Enumerated
- Jun 6, 2011
- Record last updated
- Aug 15, 2022
- Medicare enrollment
- Enrolled (PECOS I20180910000346); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,603 in Texas → Look up another NPI →
Also registered at 7200 Cambridge St FL 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Akins, R.N. MSN,CNS,CC ACNPAcute Care Nurse Practitioner1447202155
- Reza Ardehali, MD, PHDInternal Medicine Physician1104005370
- Basant Arya, M.DCardiovascular Disease Physician1851465926
- Shanda Blackmon, M.D., M.P.H.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1952347965
- Amber Browning, FNPFamily Nurse Practitioner1992501019
- Andrew Civitello, M.D.Advanced Heart Failure and Transplant Cardiology Physician1104863745
Verify Ronald L. Maag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license R6435Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,950 Medicare Part D claims for 277 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Rosuvastatin Calcium215 claims
- Atorvastatin Calcium187 claims
- Carvedilol180 claims
- Amlodipine Besylate141 claims
- Eliquis110 claims
- Metoprolol Succinate110 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.
The MIPS final score for 2023 (Medicare payment program): 91.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $29.87
1 payment: food and beverage; the largest payer was Pfizer Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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
- Baylor College OF MedicineHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald L. Maag among 1,603 cardiovascular disease physician records in Texas
Ronald L. Maag, M.D. is one of 1,603 cardiovascular disease physician records with a practice address in Texas. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 77% of them.
- NPI issued2011 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2011 · median 1998 among the 1,219 with a school on file
- Record last updated2022 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Texas
There are 1,603 cardiovascular disease physician records in Texas.
All 1,603 in Texas → Every provider in Houston → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Gregory Appleton, M.D.Houston, TX 770301114927928
- Jaime Benrey, MDHouston, TX 770301003810854
- Michael Bungo, M.D.Houston, TX 770301497756654
- Sayed Feghali, M.D.Houston, TX 770301326040486
- Jorge Garcia-Gregory, MDHouston, TX 770301760486450
- Ihab Hamzeh, MDHouston, TX 770301700886934
- Surendra Jain, MDHouston, TX 770301326036195
- Milton Klein, MDHouston, TX 770301689673568
Common questions
What is Ronald L. Maag, M.D.'s NPI number?
Ronald L. Maag, M.D.'s National Provider Identifier (NPI) is 1982998183, issued on Jun 6, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ronald L. Maag, M.D. located?
The NPPES record lists a practice address at 7200 Cambridge St FL 6, Houston, TX, 77030. Phone: (713) 798-2545. Providers update this record themselves, so call before visiting.
How can I verify Ronald L. Maag, M.D.'s license?
NPPES lists Texas license number R6435, 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 Ronald L. Maag, M.D. prescribe under Medicare Part D?
In 2024, Ronald L. Maag, M.D. had 1,950 Medicare Part D claims for 277 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is Ronald L. Maag, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.