Maryellen Buck, FNP
NPI 1124377155 · Family Nurse Practitioner · Indianapolis, IN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryellen Buck, FNP is a Family Nurse Practitioner provider in Indianapolis, IN (NPI 1124377155).
Provider details
- NPI number
- 1124377155
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 71004119A (IN)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
117 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 | 88 | $101 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 16 | $95 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $72 |
Typical Medicare-allowed amounts for these services range $72–$101 (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 · 48 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 140 | 44 |
| Amlodipine Besylate | 99 | 29 |
| Levothyroxine Sodium | 85 | 22 |
| Lisinopril | 65 | 19 |
| Losartan Potassium | 56 | 18 |
| Hydrochlorothiazide | 46 | 15 |
| Omeprazole | 45 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$204 across 11 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 (4)
- 119 W 7th StBloomington, IN 47404-3926Phone: (821) 323-4480
- 3455 Mann RdIndianapolis, IN 46221-2337Phone: (317) 487-0722
- 5545 E Stop 11 RdIndianapolis, IN 46237-8616Phone: (317) 497-6800Fax: (317) 497-6801
- 5545 E Stop 11 RdIndianapolis, IN 46237-8616Phone: (317) 497-6800Fax: (317) 497-6801
Registry dates
- Enumerated
- 2012-09-06
- Last updated
- 2023-11-27
- Certified
- 2020-09-03
Frequently asked questions
- What is Maryellen Buck's NPI number?
- Maryellen Buck's National Provider Identifier (NPI) is 1124377155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryellen Buck's specialty?
- Maryellen Buck is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maryellen Buck located?
- Maryellen Buck's practice location on file with NPPES is 5908 E Stop 11 Rd, Indianapolis, IN 46237.
- What is Maryellen Buck's phone number?
- The practice phone number listed in the NPPES registry for Maryellen Buck is (317) 497-6800.
- Does Maryellen Buck accept Medicare?
- Maryellen Buck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maryellen Buck's NPI active?
- Yes — Maryellen Buck's NPI (1124377155) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.