Mary Santiago, M.D.
NPI 1528097268 · Family Medicine Physician · Fulshear, TX
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Santiago, M.D. is a Family Medicine Physician provider in Fulshear, TX (NPI 1528097268).
Provider details
- NPI number
- 1528097268
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- N2775 (TX)
Specialties & taxonomies
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,304 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 | 520 | $121 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 168 | $159 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 123 | $86 |
| Detection Test By Immunoassay With Direct Visual Observation for Influenza Virus87804 | 100 | $16 |
| Assessment of Emotional Or Behavioral Problems96127 | 92 | $4 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 95 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 203 | 80 |
| Amlodipine Besylate | 162 | 67 |
| Losartan Potassium | 139 | 50 |
| Levothyroxine Sodium | 133 | 59 |
| Metformin Hcl | 104 | 39 |
| Lisinopril | 98 | 46 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,005 across 76 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
Additional practice locations (1)
- 1450 W Grand Pkwy S Ste MKaty, TX 77494-8331Phone: (281) 916-1444Fax: (832) 437-8983
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2026-04-07
- Certified
- 2026-04-07
Frequently asked questions
- What is Mary Santiago's NPI number?
- Mary Santiago's National Provider Identifier (NPI) is 1528097268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Santiago's specialty?
- Mary Santiago is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Santiago located?
- Mary Santiago's practice location on file with NPPES is 7629 Tiki Dr, Fulshear, TX 77441-1548.
- What is Mary Santiago's phone number?
- The practice phone number listed in the NPPES registry for Mary Santiago is (281) 346-0018.
- Does Mary Santiago accept Medicare?
- Mary Santiago is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Santiago's NPI active?
- Yes — Mary Santiago's NPI (1528097268) is active in the NPPES registry as of the last update on 2026-04-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.