Margaret Grimes, CRNA
NPI 1619954187 · Certified Registered Nurse Anesthetist · Houston, TX
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Grimes, CRNA is a Certified Registered Nurse Anesthetist provider in Houston, TX (NPI 1619954187).
Provider details
- NPI number
- 1619954187
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Female
- Sole proprietor
- Yes
- License
- 249403 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-12-27
- Last updated
- 2018-09-20
Frequently asked questions
- What is Margaret Grimes's NPI number?
- Margaret Grimes's National Provider Identifier (NPI) is 1619954187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Grimes's specialty?
- Margaret Grimes is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Grimes located?
- Margaret Grimes's practice location on file with NPPES is 4120 Southwest Fwy, Houston, TX 77027-7339.
- What is Margaret Grimes's phone number?
- The practice phone number listed in the NPPES registry for Margaret Grimes is (713) 355-8600.
- Does Margaret Grimes accept Medicare?
- Margaret Grimes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Grimes's NPI active?
- Yes — Margaret Grimes's NPI (1619954187) is active in the NPPES registry as of the last update on 2018-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.