Physician Profile
Nadim M. Zacca, M.D.
Unclaimed ProfileAbout Dr. Zacca
Nadim M. Zacca, M.D. is a specialist based in Houston, TX. Nadim is a 1979 graduate of Baylor College of Medicine. According to Medicare claims data, Nadim cared for 1,221 Medicare patients across 3,949 services. The services billed most often include injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds), subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (713) 795-4059
- Email not available
Practice Locations
6550 FANNIN ST STE 2229
Houston, TX 77030
Procedures Most Often Billed to Medicare
3,949 services · 1,221 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nuclear medicine study of heart muscle at rest and with stress and spect | Imaging | 78451 |
73 | Too few peers to compare |
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
42 | Less often than most peers in Specialist |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
220 | As often as other peers in Specialist |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
133 | As often as other peers in Specialist |
| Ultrasound of both sides of head and neck blood flow | Treatment | 93880 |
131 | More often than most peers in Specialist |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician | Treatment | 93015 |
116 | As often as other peers in Specialist |
| Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | Treatment | 93458 |
17 | Less often than most peers in Specialist |
| Injection, adenosine, 1 mg (not to be used to report any adenosine phosphate compounds) | Drug given | J0153 |
1,980 | Too few peers to compare |
| Injection, regadenoson, 0.1 mg | Drug given | J2785 |
145 | As often as other peers in Specialist |
| Technetium tc-99m sestamibi, diagnostic, per study dose | A9500 |
108 | As often as other peers in Specialist |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other specialists in Houston 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at Baylor College of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 1979 at Baylor College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine study of heart muscle at rest and with stress and spect 8
Providers in TX who bill this service to Medicare most often.
Common questions
What is Nadim M. Zacca's specialty?
Nadim M. Zacca is a specialist in Houston, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Nadim M. Zacca?
Nadim M. Zacca is listed at 6550 Fannin St Ste 2229, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Nadim M. Zacca?
The number on file is (713) 795-4059. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Nadim M. Zacca's NPI number?
Nadim M. Zacca's National Provider Identifier is 1114019346. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Nadim M. Zacca's education?
Nadim M. Zacca attended Baylor College of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How long has Nadim M. Zacca been practicing?
Nadim M. Zacca has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What is Nadim M. Zacca known for?
According to Medicare billing data, Nadim M. Zacca performs imaging including nuclear medicine study of heart muscle at rest and with stress and spect and nuclear medicine studies of heart muscle at rest and with stress and spect; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Nadim M. Zacca confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Nadim M. Zacca. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.