DR. MICHELLE KATHERINE HAAS (MD) – Infectious Disease Physician, NPI 1043402944
Infectious Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
175 INFECTIOUS DISEASE in CO
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Provider Addresses for DR. MICHELLE KATHERINE HAAS (MD)
660, Bannock Street, Lincoln Park, Denver, Denver County, Colorado, 80204, United States
SUITE 4000
DENVER, CO 802044506
Phone: (303) 602-5052
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 3 Open Payments records for all available years, with a total value of $125.
Total Amount is formed as General ($125) + Research ($0) + Ownership ($0) = $125.
Last reported payment date: 2024-05-19 • Largest payer in this snapshot: Insmed, Inc. ($101).
Total Amount
$125
General + Research + Ownership
Payments
3
Total payment records
General Amount
$125
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Insmed, Inc. | $101 |
| SOBI, INC | $24 |
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: 2004-07-07
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-07-31 (1050 days ago).
Enrollment records
1
Earliest due date
2023-07-31
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 |
|---|---|---|---|---|
| I20040707000786 | I | Infectious Disease | CO | 2023-07-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
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 |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 40 | 28 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 21 | 21 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 11 | 11 | $0 |
Insurance plans in this area (ZIP 80204)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| A L L E R G Y/ I M M U N O L O G Y | CA | |
| Diagnostic Radiology | MD | |
| - | CO | |
| Pediatric Medicine, Allergy/Immunology, Internal Medicine | CO | |
| Nurse Practitioner | CO | |
| Nurse Practitioner | CO | |
| Sleep Medicine, Pulmonary Disease | CO | |
| Pulmonary Disease | CO | |
| A L L E R G Y/ I M M U N O L O G Y | HI | |
| Pulmonary Disease | CO |
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