Maria Kapetanios-Fountoulakis, D.O.
NPI 1538891619 · Internal Medicine Physician · Henderson, NV
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Kapetanios-Fountoulakis, D.O. is a Internal Medicine Physician provider in Henderson, NV (NPI 1538891619).
Provider details
- NPI number
- 1538891619
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- DO3905 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
4 documented practice locations
- 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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lisinopril | 12 |
| Furosemide | 11 |
| Gabapentin | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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.
$46 across 2 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
Additional practice locations (3)
- 3001 Saint Rose PkwyHenderson, NV 89052-3839Phone: (702) 492-8592Fax: (702) 492-8045
- 102 E Lake Mead PkwyHenderson, NV 89015-5575Phone: (702) 492-8592Fax: (702) 492-8045
- 8280 W Warm Springs RdLas Vegas, NV 89113-3612Phone: (702) 492-8592Fax: (702) 492-8045
Registry dates
- Enumerated
- 2022-06-28
- Last updated
- 2025-11-03
- Certified
- 2025-11-03
Frequently asked questions
- What is Maria Kapetanios-Fountoulakis's NPI number?
- Maria Kapetanios-Fountoulakis's National Provider Identifier (NPI) is 1538891619, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Kapetanios-Fountoulakis's specialty?
- Maria Kapetanios-Fountoulakis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Kapetanios-Fountoulakis located?
- Maria Kapetanios-Fountoulakis's practice location on file with NPPES is 10001 S Eastern Ave Ste 101, Henderson, NV 89052-3908.
- What is Maria Kapetanios-Fountoulakis's phone number?
- The practice phone number listed in the NPPES registry for Maria Kapetanios-Fountoulakis is (702) 616-5870.
- Does Maria Kapetanios-Fountoulakis accept Medicare?
- Maria Kapetanios-Fountoulakis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Kapetanios-Fountoulakis's NPI active?
- Yes — Maria Kapetanios-Fountoulakis's NPI (1538891619) is active in the NPPES registry as of the last update on 2025-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.