Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Diana Adams Nichols, NP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1194009480

Diana Adams Nichols, NP is a Nurse Practitioner in Houston, Texas. Qualified in 1997, 29 years ago. Practices with Physicians Referral Service, a 2,727-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
29
Licensed in
TX
In the registry since
2011
Specialties on file
3
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

1515 Holcombe Blvd
Houston, TX 77030-4009
Phone: (713) 792-6161
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence AP108255 (TX)
Psychiatric/Mental Health Nurse Practitioner Taxonomy 363LP0808X · Licence AP108255 (TX)
Adult Psychiatric/Mental Health Clinical Nurse Specialist Taxonomy 364SP0809X · Licence 529645 (TX)

Record details

NPI number1194009480
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedOctober 5, 2011
Last updated in NPPESFebruary 23, 2023
Certification dateFebruary 23, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Physicians Referral Service — 2727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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