Maria Decker, DNP
NPI 1225655590 · Family Nurse Practitioner · Des Moines, IA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Decker, DNP is a Family Nurse Practitioner provider in Des Moines, IA (NPI 1225655590).
Provider details
- NPI number
- 1225655590
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- No
- License
- A159567 (IA)
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 tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
203 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 125 | $101 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 48 | $71 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 16 | $131 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 14 | $9 |
Typical Medicare-allowed amounts for these services range $9–$131 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hclbrand: Metformin Hcl Er | 99 | 30 |
| Semaglutidebrand: Ozempic | 51 | — |
| Tirzepatidebrand: Mounjaro | 43 | — |
| Topiramate | 20 | — |
| Naltrexone Hcl | 16 | — |
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 , 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.
$175 across 5 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)
- 1111 Duff Ave Ste 2607Ames, IA 50010-5745Phone: (515) 446-0979
- 403 1st St SeBelmond, IA 50421-1201Phone: (641) 444-3500Fax: (319) 343-1161
- 1316 S Main StClarion, IA 50525-2019Phone: (515) 532-2811Fax: (515) 532-3119
Registry dates
- Enumerated
- 2020-07-02
- Last updated
- 2024-08-13
- Certified
- 2024-08-13
Frequently asked questions
- What is Maria Decker's NPI number?
- Maria Decker's National Provider Identifier (NPI) is 1225655590, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Decker's specialty?
- Maria Decker is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Decker located?
- Maria Decker's practice location on file with NPPES is 5901 Thornton Ave Ste 101, Des Moines, IA 50321-2403.
- What is Maria Decker's phone number?
- The practice phone number listed in the NPPES registry for Maria Decker is (515) 327-2000.
- Does Maria Decker accept Medicare?
- Maria Decker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Decker's NPI active?
- Yes — Maria Decker's NPI (1225655590) is active in the NPPES registry as of the last update on 2024-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.