Marelle Montanez, DO
NPI 1891149399 · Internal Medicine Physician · Houston, TX
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marelle Montanez, DO is a Internal Medicine Physician provider in Houston, TX (NPI 1891149399).
Provider details
- NPI number
- 1891149399
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- S0512 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
400 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 191 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 76 | $113 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 57 | $109 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 32 | $77 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 | $165 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$26 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
Additional practice locations (1)
- 401 W Greenlawn AveLansing, MI 48910-2819Phone: (517) 975-7888
Registry dates
- Enumerated
- 2016-04-20
- Last updated
- 2019-03-10
Frequently asked questions
- What is Marelle Montanez's NPI number?
- Marelle Montanez's National Provider Identifier (NPI) is 1891149399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marelle Montanez's specialty?
- Marelle Montanez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marelle Montanez located?
- Marelle Montanez's practice location on file with NPPES is 6411 Fannin St, Houston, TX 77030-1501.
- What is Marelle Montanez's phone number?
- The practice phone number listed in the NPPES registry for Marelle Montanez is (713) 704-4000.
- Does Marelle Montanez accept Medicare?
- Marelle Montanez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marelle Montanez's NPI active?
- Yes — Marelle Montanez's NPI (1891149399) is active in the NPPES registry as of the last update on 2019-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.