DIANA AFIA DANKYI APPOU MSN, AGACNP-BC
NPI 1205689189
Nurse Practitioner - Acute Care in Houston, TX

Active since April 09, 2024PECOS EnrolledAccepts Medicare Assignment
6400 FANNIN ST STE 2800, HOUSTON, TX 77030(713) 486-8000(713) 486-8088 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Apr 11, 2025, Apr 9, 2024 (2 updates tracked since 2024).

About Diana Afia Dankyi Appou Msn, Agacnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DIANA AFIA DANKYI APPOU MSN, AGACNP-BC (NPI 1205689189) is an individual acute care provider in Houston, Texas, licensed in Texas (1157175) and active in the NPI registry since April 2024. She is enrolled in Medicare PECOS, is affiliated with Memorial Hermann - Texas Medical Center, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1205689189
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameDIANA AFIA DANKYI APPOUCredential: MSN, AGACNP-BC
Location Address6400 FANNIN ST STE 2800Houston, TX 77030-1534
Mailing Address6400 Fannin St Ste 2070Houston, TX 77030-1541 · (713) 486-8000 · Fax (713) 500-0871
Fax(713) 486-8088
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateApril 9, 2024
Last NPPES UpdateFebruary 25, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 25, 2026
✔ NPI 1205689189 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in TX · 1157175
Also ListedNurse PractitionerTaxonomy 363L00000X · License 1157175 (TX)
6400 FANNIN ST STE 2800, Houston, TX 77030

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Diana Afia Dankyi Appou Msn, Agacnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860913910
PECOS Enrollment IDI20250305004249
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Diana Dankyi Appou reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Neurological Surgery
6400 FANNIN ST STE 2800
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 263 clinicians in this Medicare group
Ophthalmology
6550 FANNIN ST, SUITE 447
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 2,407 clinicians in this Medicare group
Otolaryngology
7550 GREENBRIAR DR STE 600
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 1,579 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Memorial Hermann - Texas Medical Center

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450068
Location6411 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychiatry & Neurology (Neurology)
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Psychiatry & Neurology (Neurocritical Care)
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Psychiatry & Neurology (Neurology)
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Physician Assistant
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Student in an Organized Health Care Education/Training Program
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Neurological Surgery
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Student in an Organized Health Care Education/Training Program
6400 FANNIN ST STE 2800
HOUSTON, TX 77030
Psychiatry & Neurology (Neurology)
6400 FANNIN ST STE 2800
HOUSTON, TX 77030

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Diana Dankyi Appou's NPI number?

The NPI number for Diana Dankyi Appou is 1205689189. It was assigned to this individual provider in the NPPES registry on April 9, 2024.

Where is Diana Dankyi Appou located?

Diana Dankyi Appou practices at 6400 Fannin St Ste 2800, Houston, TX 77030. The listed phone number is (713) 486-8000.

What is Diana Dankyi Appou's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Diana Dankyi Appou enrolled in Medicare?

Yes. Diana Dankyi Appou is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Diana Dankyi Appou's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diana Dankyi Appou reassigns Medicare benefits to 3 organizations: Ut Physicians (Houston, TX), Tmh Physician Associates PLLC (Houston, TX) and Houston Methodist Specialty Physicians (Houston, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Diana Dankyi Appou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Diana Dankyi Appou accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Diana Dankyi Appou as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Diana Dankyi Appou affiliated with any hospitals?

According to CMS data, Diana Dankyi Appou is affiliated with Memorial Hermann - Texas Medical Center.

When was this NPI record last updated?

The NPPES record for Diana Dankyi Appou was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.