Physician Profile
Unclaimed ProfileAbout GARRISON
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Areas of Expertise
Common questions
What kind of doctor is Dr. Garrison?
Dr. Garrison is an emergency physician in Lewisville, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Emergency Medicine”.
NPI registry
What is Dr. Garrison's address?
Dr. Garrison is listed at 500 W MAIN ST, Lewisville, TX 75057. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Garrison?
The number on file is (972) 758-3598. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Garrison's NPI number?
Dr. Garrison's National Provider Identifier is 1922084144. 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
How long has Dr. Garrison been practising?
Dr. Garrison has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
What procedures does Dr. Garrison perform?
According to Medicare billing data, Dr. Garrison provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Garrison confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Garrison. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (972) 758-3598
- Email not available
Practice Locations
500 W MAIN ST
Lewisville, TX 75057
Procedures Most Often Billed to Medicare
966 services · 916 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
300 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
463 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
154 |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
37 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
12 |
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 emergency physicians at this location 8
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 emergency physicians in Lewisville 3
Same specialty, same city.
More connections — 8 related providers in 1 group
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in TX who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.