MELISSA ANN CHISTON MD
NPI 1134440886
Internal Medicine - Rheumatology in Ames, IA

Active since June 17, 2010PECOS EnrolledAccepts Medicare Assignment
3500 UNIVERSITY BLVD, AMES, IA 50010(515) 239-4775(515) 239-3045 Get Directions Write a Review

NPPES record last updated: December 23, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 23, 2025, Jun 1, 2021, Mar 17, 2018 and 2 more (5 updates tracked since 2016).

About Melissa Ann Chiston Md NPPES

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

MELISSA ANN CHISTON MD (NPI 1134440886) is an individual rheumatology provider in Ames, Iowa, licensed in Iowa (48288) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Trinity Regional Medical Center, and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (2010).

NPPES Registry Identity

NPI1134440886
Entity TypeIndividualFemale
Primary Taxonomy207RR0500X
Provider Legal NameMELISSA ANN CHISTONCredential: MD
Location Address3500 UNIVERSITY BLVDAmes, IA 50010-8676
Mailing Address1215 Duff AveAmes, IA 50010-5469 · (515) 239-4400
Fax(515) 239-3045
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 2010
Enumeration DateJune 17, 2010
Last NPPES UpdateDecember 23, 20255 updates tracked since enumeration
NPPES CertifiedDecember 23, 2025
NPI 1134440886 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses Licensed in IA · 48288 Licensed in CO · DR.0056562 Licensed in NC · 2013-00259
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedInternal MedicineTaxonomy 207R00000X · License 54317 (MN)
3500 UNIVERSITY BLVD, Ames, IA 50010

Other Names 1

Former Name (1)Melissa Wells Md

Other Identifiers 1

Medicaid35135107CO

Accepted 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

Melissa Ann Chiston Md 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 ID6507039815
PECOS Enrollment IDI20210406001350
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 44

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.

Injection, romosozumab-aqqg, 1 mg J3111
Romosozumab-aqqg is a medication given by injection to treat osteoporosis in patients at high risk for fractures. It works by increasing bone mass and strength, reducing the risk of fractures.
11,760 services14 patients
Injection, denosumab, 1 mg J0897
Denosumab is a medication given via injection to strengthen your bones. It works by slowing down the cells that break down bone, improving bone density and reducing the risk of fractures. It's often used for osteoporosis treatment.
3,300 services35 patients
Injection, infliximab, excludes biosimilar, 10 mg J1745
Infliximab is a medication given via injection to treat certain autoimmune conditions. It works by blocking the action of a substance in your body that causes inflammation. Each dose is based on your medical condition and response to treatment.
3,300 services15 patients
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.
1,014 services452 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.
1,012 services430 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.
850 services393 patients

Hospital Affiliations CMS Care Compare 5

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

Trinity Regional Medical Center

Acute Care Hospitals · Fort Dodge, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160016
Location802 Kenyon RdFort Dodge, IA 50501 · Webster County
Emergency services Birthing friendly

Mercyone North Iowa Medical Center

Acute Care Hospitals · Mason City, IA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number160064
Location1000 Fourth Street SWMason City, IA 50401 · Cerro Gordo County
Emergency services Birthing friendly

Kossuth Regional Health Center

Critical Access Hospitals · Algona, IA
1/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number161353
Location1515 South Phillips StreetAlgona, IA 50511 · Kossuth County
Emergency services Birthing friendly

Boone County Hospital

Critical Access Hospitals · Boone, IA
OwnershipGovernment - Local
CMS Certification Number161372
Location1015 Union StreetBoone, IA 50036 · Boone County
Emergency services

Hansen Family Hospital

Critical Access Hospitals · Iowa Falls, IA
OwnershipGovernment - Local
CMS Certification Number161380
Location920 South Oak StreetIowa Falls, IA 50126 · Hardin County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 50010 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.23 typical visit price
range $52.96 – $161.40
Typical copayment $30.55 (range $13.24 – $40.35)
Most-billed visit code 99204
Established Patient
$94.05 typical visit price
range $16.91 – $131.98
Typical copayment $23.51 (range $4.22 – $32.99)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

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

Family Medicine
3500 UNIVERSITY BLVD
AMES, IA 50010
Family Medicine (Sports Medicine)
3500 UNIVERSITY BLVD, SUITE 1001
AMES, IA 50010
Family Medicine
3500 UNIVERSITY BLVD
AMES, IA 50010
Family Medicine
3500 UNIVERSITY BLVD, SUITE 1001
AMES, IA 50010
Family Medicine (Sports Medicine)
3500 UNIVERSITY BLVD, SUITE 1001
AMES, IA 50010
Internal Medicine (Rheumatology)
3500 UNIVERSITY BLVD
AMES, IA 50010
Physical Therapist
3500 UNIVERSITY BLVD
AMES, IA 50010
Physical Therapist
3500 UNIVERSITY BLVD
AMES, IA 50010

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 Melissa Chiston's NPI number?

The NPI number for Melissa Chiston is 1134440886. It was assigned to this individual provider in the NPPES registry on June 17, 2010. The provider is also known as Melissa Wells MD.

Where is Melissa Chiston located?

Melissa Chiston practices at 3500 University Blvd, Ames, IA 50010. The listed phone number is (515) 239-4775.

What is Melissa Chiston's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Melissa Chiston enrolled in Medicare?

Yes. Melissa Chiston 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 Melissa Chiston accept?

Health plans from Medica list Melissa Chiston 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 Melissa Chiston affiliated with any hospitals?

According to CMS data, Melissa Chiston is affiliated with Trinity Regional Medical Center, Mercyone North Iowa Medical Center, Kossuth Regional Health Center, Boone County Hospital and Hansen Family Hospital.

When was this NPI record last updated?

The NPPES record for Melissa Chiston was last updated on December 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.