Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Mercy Annamma John, MSN, APRN, AGACNP-BC

Individual provider Critical Care Medicine Nurse Practitioner · NPI 1770459752

Mrs. Mercy Annamma John, MSN, APRN, AGACNP-BC is a Nurse Practitioner in Houston, Texas. Qualified in 2023, 3 years ago. Practices with Baylor College of Medicine, a 1,218-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
3
Licensed in
TX
In the registry since
2025
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

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Practice location Address checks out

6720 Bertner Ave
Houston, TX 77030-2604
Phone: (832) 355-5800
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7200 Cambridge St, Houston, TX 77030-4202 — (713) 798-2400

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 1215210 (TX)
Critical Care Medicine Nurse Practitioner Taxonomy 363LC0200X · Licence 1215210 (TX)

Record details

NPI number1770459752
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APRN , AGACNP-BC
Sole proprietorNo
NPI enumeratedOctober 15, 2025
Last updated in NPPESOctober 20, 2025
Certification dateOctober 20, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Baylor College Of Medicine — 1218 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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