Karolyn Mau, FNP-C
NPI 1851925440 · Family Nurse Practitioner · Columbus, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karolyn Mau, FNP-C is a Family Nurse Practitioner provider in Columbus, TX (NPI 1851925440).
Provider details
- NPI number
- 1851925440
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP145254 (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 tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 242 | 119 |
| Triamcinolone Acetonide | 48 | 40 |
| Metronidazole | 46 | 23 |
| Clobetasol Propionate | 29 | 15 |
| Mupirocin | 16 | 12 |
| Famciclovir | 15 | — |
| Azelaic Acid | 12 | — |
| Doxycycline Hyclate | 12 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$180 across 7 records (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
Registry dates
- Enumerated
- 2020-02-24
- Last updated
- 2023-03-28
- Certified
- 2020-08-26
Frequently asked questions
- What is Karolyn Mau's NPI number?
- Karolyn Mau's National Provider Identifier (NPI) is 1851925440, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karolyn Mau's specialty?
- Karolyn Mau is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karolyn Mau located?
- Karolyn Mau's practice location on file with NPPES is 2545 Brunes Mill Rd, Columbus, TX 78934-6100.
- What is Karolyn Mau's phone number?
- The practice phone number listed in the NPPES registry for Karolyn Mau is (979) 733-4022.
- Does Karolyn Mau accept Medicare?
- Karolyn Mau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karolyn Mau's NPI active?
- Yes — Karolyn Mau's NPI (1851925440) is active in the NPPES registry as of the last update on 2023-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.