Gretchen Calhoun, CNP
NPI 1689714586 · Adult Health Nurse Practitioner · Columbus, OH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Calhoun, CNP is a Adult Health Nurse Practitioner provider in Columbus, OH (NPI 1689714586).
Provider details
- NPI number
- 1689714586
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNP
- Sex
- Female
- Sole proprietor
- No
- License
- APRN.CNP.00908 (OH)
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
370 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 106 | $72 |
| Measurement of Liver Stiffness91200 | 73 | $24 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 66 | $105 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 42 | $45 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 42 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ursodiol | 115 | 24 |
| Spironolactone | 101 | 40 |
| Lactulose | 77 | 31 |
| Bumetanide | 73 | 22 |
| Furosemide | 56 | 21 |
| Tenofovir Disoproxil Fumarate | 34 | — |
| Rifaximinbrand: Xifaxan | 32 | 11 |
| Azathioprine | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,974 across 14 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
- 2007-02-08
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is Gretchen Calhoun's NPI number?
- Gretchen Calhoun's National Provider Identifier (NPI) is 1689714586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Calhoun's specialty?
- Gretchen Calhoun is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gretchen Calhoun located?
- Gretchen Calhoun's practice location on file with NPPES is 3400 Olentangy River Rd, Columbus, OH 43202-1523.
- What is Gretchen Calhoun's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Calhoun is (614) 754-5500.
- Does Gretchen Calhoun accept Medicare?
- Gretchen Calhoun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Calhoun's NPI active?
- Yes — Gretchen Calhoun's NPI (1689714586) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.