MELISSA ANN CHISTON (MD) – Rheumatology Physician, NPI 1134440886
Rheumatology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
61 RHEUMATOLOGY in IA
Provider Addresses for MELISSA ANN CHISTON (MD)
3500 UNIVERSITY BLVD
AMES, IA 500108676
Phone: (515) 239-4775
Fax: (515) 239-3045
Type: Location
1215 DUFF AVE
AMES, IA 500105469
Phone: (515) 239-4400
Type: Mailing
1715 IRON HORSE DR STE 100
LONGMONT, CO 805019617
Phone: (720) 494-4700
Fax: (720) 494-4706
Type: Mailing
2095 W 6TH AVE STE 106
BROOMFIELD, CO 800201870
Phone: (720) 494-4700
Fax: (720) 494-4706
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $26.
Total Amount is formed as General ($26) + Research ($0) + Ownership ($0) = $26.
Last reported payment date: 2023-02-09 • Largest payer in this snapshot: Horizon Therapeutics plc ($26).
Total Amount
$26
General + Research + Ownership
Payments
1
Total payment records
General Amount
$26
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Horizon Therapeutics plc | $26 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2021-04-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20210406001350 | I | Rheumatology | IA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 2,400 | 28 | $0 |
| J1745 | Injection, infliximab, excludes biosimilar, 10 mg | 1,220 | 11 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 997 | 413 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 921 | 372 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 737 | 335 | $0 |
Insurance plans in this area (ZIP 50010)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y/ O N C O L O G Y | IA | |
| - | IA | |
| - | IA | |
| - | IA | |
| Internal Medicine | IA | |
| - | IA | |
| - | IA | |
| - | IA | |
| Family Practice | IA | |
| Certified Nurse Midwife (Cnm) | IA |
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