Maria Gramatges, MD
NPI 1548456338 · Pediatric Hematology & Oncology Physician · Houston, TX
Maria Gramatges, MD is a Pediatric Hematology & Oncology Physician provider in Houston, TX (NPI 1548456338).
Provider details
- NPI number
- 1548456338
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A94548 (CA)
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 tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-14
- Last updated
- 2009-09-29
Frequently asked questions
- What is Maria Gramatges's NPI number?
- Maria Gramatges's National Provider Identifier (NPI) is 1548456338, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Gramatges's specialty?
- Maria Gramatges is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Gramatges located?
- Maria Gramatges's practice location on file with NPPES is 1102 Bates Ave, Houston, TX 77030-2600.
- What is Maria Gramatges's phone number?
- The practice phone number listed in the NPPES registry for Maria Gramatges is (832) 824-4678.
- Is Maria Gramatges's NPI active?
- Yes — Maria Gramatges's NPI (1548456338) is active in the NPPES registry as of the last update on 2009-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.