CHRISTY JOHNSON
NPI 1093455636
Physician Assistant - Medical in Iowa City, IA

Q: What is Christy Johnson's NPI number?

The NPI number for Christy Johnson is 1093455636. It was assigned to this individual provider in the NPPES registry on March 31, 2022. The provider is also known as Christy Lee Ralston.

Q: What is Christy Johnson's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Q: When was this NPI record last updated?

The NPPES record for Christy Johnson was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 31, 2022PECOS EnrolledAccepts Medicare Assignment

200 HAWKINS DR, IOWA CITY, IA 52242(319) 356-2674(319) 356-3347 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 8, 2026, Oct 31, 2023, Jul 24, 2023 (3 updates tracked since 2023).

On this page

About Christy Johnson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTY JOHNSON (NPI 1093455636) is an individual medical provider in Iowa City, Iowa, licensed in Iowa (121601) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS, is affiliated with Mercyone Clinton Medical Center, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1093455636

Entity TypeIndividualFemale

Primary Taxonomy363AM0700X

Provider Legal NameCHRISTY JOHNSON

Location Address200 HAWKINS DRIowa City, IA 52242-1009

Mailing Address200 Hawkins DrIowa City, IA 52242-1009 · (319) 356-2674 · Fax (319) 356-3347

Phone(319) 356-2674

Fax(319) 356-3347

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateMarch 31, 2022

Last NPPES UpdateApril 8, 20263 updates tracked since enumeration

NPPES CertifiedApril 8, 2026

✔ NPI 1093455636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363AM0700X

License✔ Licensed in IA · 121601

Also ListedPhysician AssistantTaxonomy 363A00000X · License 121601 (IA)

200 HAWKINS DR, Iowa City, IA 52242

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Other Names 1

Former Name (1)Christy Lee Ralston

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from NH Healthy Families, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Christy Johnson is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961856133

PECOS Enrollment IDI20230922000500

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 14

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

213 services101 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

204 services91 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

94 services72 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

76 services51 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

63 services32 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

44 services36 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

32 services25 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

31 services31 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

23 services23 patients

Manual urinalysis test with examination using microscope, automated 81001

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

19 services13 patients

Ldl cholesterol level 83721

The LDL cholesterol level is a test that measures the amount of low-density lipoprotein (LDL) in your blood. LDL is often referred to as 'bad cholesterol' because high levels can lead to heart disease. Regular testing helps monitor and manage your heart health.

14 services13 patients

Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit G0438

An annual wellness visit is a yearly appointment with your doctor to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's an opportunity to discuss your health status and goals and get a plan tailored for you.

13 services13 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

12 services12 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mercyone Clinton Medical Center

Acute Care Hospitals · Clinton, IA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number160080

Location1410 North 4th StreetClinton, IA 52732 · Clinton County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SANGIL LEE M.D.

Emergency Medicine

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2233

RAMI G. EL ABIAD M.D.

Internal Medicine (Gastroenterology)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-4901

GRERK SUTAMTEWAGUL MD

Internal Medicine (Hematology & Oncology)

200 HAWKINS DR, DEPT OF INTERNAL MEDICINE
IOWA CITY, IA 52242

Johnson County (319) 356-1616

DR. KALEB TANNER VEIT D.O.

Internal Medicine (Critical Care Medicine)

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 356-2320

OMAR JABER M.D

Chronic Disease Hospital

200 HAWKINS DR
IOWA CITY, IA 52242

Johnson County (319) 471-8958

JENNIFER MANCUSO MS, CGC

Genetic Counselor, MS

200 HAWKINS DR, 31663 PFP
IOWA CITY, IA 52242

Johnson County (319) 384-7983

ASHLEY KAISER M.D.

Obstetrics & Gynecology

200 HAWKINS DR, DEPT OF OBGYN
IOWA CITY, IA 52242

Johnson County (319) 356-2294

MRS. NANCY JANE MILLICE

Health Educator

200 HAWKINS DR, 0733 JPP
IOWA CITY, IA 52242

Johnson County (319) 356-3825

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christy Johnson's NPI number?

The NPI number for Christy Johnson is 1093455636. It was assigned to this individual provider in the NPPES registry on March 31, 2022. The provider is also known as Christy Lee Ralston.

Where is Christy Johnson located?

Christy Johnson practices at 200 Hawkins Dr, Iowa City, IA 52242. The listed phone number is (319) 356-2674.

What is Christy Johnson's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Christy Johnson enrolled in Medicare?

Yes. Christy Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Christy Johnson accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from NH Healthy Families and Ambetter from Sunflower Health Plan and 2 other insurers list Christy Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Christy Johnson affiliated with any hospitals?

According to CMS data, Christy Johnson is affiliated with Mercyone Clinton Medical Center.

When was this NPI record last updated?

The NPPES record for Christy Johnson was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.