Mary Johnson, ARNP
NPI 1518953629 · Nurse Practitioner · Iowa City, IA
Mary Johnson, ARNP is a Nurse Practitioner provider in Iowa City, IA (NPI 1518953629).
Provider details
- NPI number
- 1518953629
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- J053450 (IA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
274 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 | 80 | $52 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 57 | $84 |
| Psychotherapy With Evaluation and Management Visit, 45 Minutes90836 | 46 | $65 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 41 | $52 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 30 | $76 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 99 | 18 |
| Duloxetine Hcl | 96 | 20 |
| Quetiapine Fumarate | 69 | — |
| Buspirone Hcl | 63 | — |
| Mirtazapine | 44 | — |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 39 | — |
| Trazodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (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
- 2005-09-23
- Last updated
- 2007-12-11
Frequently asked questions
- What is Mary Johnson's NPI number?
- Mary Johnson's National Provider Identifier (NPI) is 1518953629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Johnson's specialty?
- Mary Johnson is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Johnson located?
- Mary Johnson's practice location on file with NPPES is 200 Hawkins Dr, Iowa City, IA 52242-1009.
- What is Mary Johnson's phone number?
- The practice phone number listed in the NPPES registry for Mary Johnson is (319) 384-8473.
- Is Mary Johnson's NPI active?
- Yes — Mary Johnson's NPI (1518953629) is active in the NPPES registry as of the last update on 2007-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.