Greta Szabo, M.D.
NPI 1649232141 · Gastroenterology Physician · Dallas, TX
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greta Szabo, M.D. is a Gastroenterology Physician provider in Dallas, TX (NPI 1649232141).
Provider details
- NPI number
- 1649232141
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- Q1308 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
126 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 59 | $124 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 26 | $187 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $86 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 13 | $98 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 13 | $166 |
Typical Medicare-allowed amounts for these services range $86–$187 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 89 | 34 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 67 | 63 |
| Promethazine Hcl | 61 | — |
| Famotidine | 61 | 28 |
| Omeprazole | 58 | 23 |
| Ondansetron Hcl | 55 | 48 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 50 | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-03
- Last updated
- 2014-08-19
Frequently asked questions
- What is Greta Szabo's NPI number?
- Greta Szabo's National Provider Identifier (NPI) is 1649232141, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greta Szabo's specialty?
- Greta Szabo is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Greta Szabo located?
- Greta Szabo's practice location on file with NPPES is 5323 Harry Hines Blvd, Dallas, TX 75390-7201.
- What is Greta Szabo's phone number?
- The practice phone number listed in the NPPES registry for Greta Szabo is (214) 645-0595.
- Does Greta Szabo accept Medicare?
- Greta Szabo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greta Szabo's NPI active?
- Yes — Greta Szabo's NPI (1649232141) is active in the NPPES registry as of the last update on 2014-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.