Thao Marquez, MD,MS
NPI 1275696866 · Surgery Physician · Creve Coeur, MO
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thao Marquez, MD,MS is a Surgery Physician provider in Creve Coeur, MO (NPI 1275696866).
Provider details
- NPI number
- 1275696866
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD,MS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 48381 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
214 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) |
|---|---|---|
| Diagnostic Exam of Anus Using an Endoscope46600 | 65 | $39 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 41 | $79 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 40 | $93 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 32 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 25 | $63 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 56 | 50 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 45 | 41 |
| Metronidazole | 38 | 37 |
| Neomycin Sulfate | 37 | 37 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 37 | 35 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 19 | 19 |
| Hydrocortisone | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,123 across 18 records (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
- 2006-12-18
- Last updated
- 2018-08-06
Frequently asked questions
- What is Thao Marquez's NPI number?
- Thao Marquez's National Provider Identifier (NPI) is 1275696866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thao Marquez's specialty?
- Thao Marquez is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Thao Marquez located?
- Thao Marquez's practice location on file with NPPES is 621 S New Ballas Rd, Creve Coeur, MO 63141-8232.
- What is Thao Marquez's phone number?
- The practice phone number listed in the NPPES registry for Thao Marquez is (314) 251-6840.
- Does Thao Marquez accept Medicare?
- Thao Marquez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thao Marquez's NPI active?
- Yes — Thao Marquez's NPI (1275696866) is active in the NPPES registry as of the last update on 2018-08-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.