Michael Gerard Isaac, M.D.
Cardiovascular Disease Physician · Dallas, TX
Michael Gerard Isaac, M.D. is a cardiovascular disease physician with a practice address in Dallas, Texas, and NPI 1558398222, issued on Jun 27, 2006. Check the license (Texas J4233, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Michael Gerard Isaac
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- J4233 TX
Self-reported in NPPES; status is on the state search - Practice location
- 7777 Forest LN, Dallas, TX 75230
- Phone
- (972) 566-8855
- Enumerated
- Jun 27, 2006
- Record last updated
- Aug 28, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (972) 566-7509
- Medicaid ID
- 138174102 TX
- Medicare enrollment
- Enrolled (PECOS I20100504000665); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,603 in Texas → Look up another NPI →
Also registered at 7777 Forest LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jillian AdamsPsychiatric/Mental Health Nurse Practitioner1033513031
- Jane Admire, MDOtolaryngology Physician1023139433
- Dessy Adont, APRN, AG-ACNPNurse Practitioner1710586870
- Alexandria Aguilar, CSFAOther Specialist/Technologist1376402784
- Azadeh Ajami, PSYDPsychologist1437278637
- Mustafa Al-Chalabi, MDEmergency Medicine Physician1417932948
Verify Michael Gerard Isaac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J4233Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
6,714 Medicare Part D claims for 1,033 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Clopidogrel561 claims
- Metoprolol Succinate503 claims
- Eliquis398 claims
- Losartan Potassium341 claims
- Atorvastatin Calcium338 claims
- Amlodipine Besylate318 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: $1,162.95
55 payments; by number, the most common kind was food and beverage; the largest payer was Kiniksa Pharmaceuticals International, plc. 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
- Healthtexas Provider NetworkFrisco, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Gerard Isaac among 1,603 cardiovascular disease physician records in Texas
Michael Gerard Isaac, 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 2006, is newer than 20% of them.
- NPI issued2006 · 20% of these records are older, 42% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1992 · median 1998 among the 1,219 with a school on file
- Record last updated2012 · 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 Dallas → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Allan Anderson, M.D.Dallas, TX 752301760459432
- James Boehrer, M.D.Dallas, TX 752301821089285
- Bruce Bowers, M.D.Dallas, TX 752301619979622
- Alistair Fyfe, M.D. PH.D.Dallas, TX 752301225063902
- Donald Levene, MDDallas, TX 752301700999133
- Robert Liao, M.D.Dallas, TX 752301891786257
- Nicholas Macpherson, MDDallas, TX 752301497097984
- Syed Raza, M.D.Dallas, TX 752301144417569
Common questions
What is Michael Gerard Isaac, M.D.'s NPI number?
Michael Gerard Isaac, M.D.'s National Provider Identifier (NPI) is 1558398222, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Gerard Isaac, M.D. located?
The NPPES record lists a practice address at 7777 Forest LN, Dallas, TX, 75230. Phone: (972) 566-8855. Providers update this record themselves, so call before visiting.
How can I verify Michael Gerard Isaac, M.D.'s license?
NPPES lists Texas license number J4233, 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 Michael Gerard Isaac, M.D. prescribe under Medicare Part D?
In 2024, Michael Gerard Isaac, M.D. had 6,714 Medicare Part D claims for 1,033 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.