MATTHEW D NIEHAUS (AA-C) – Anesthesiologist Assistant, NPI 1679912216
Anesthesiologist Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
224 ANESTHESIOLOGY ASSISTANT in CO
Provider Addresses for MATTHEW D NIEHAUS (AA-C)
8000 E MAPLEWOOD AVE
GREENWOOD VILLAGE, CO 801114766
Phone: (303) 438-3999
Fax: (720) 439-9500
Type: Mailing
8000 E MAPLEWOOD AVE STE 120
GREENWOOD VILLAGE, CO 801114766
Phone: (303) 438-3999
Fax: (720) 439-9500
Type: Location
PO BOX 840862
DALLAS, TX 752840862
Phone: (303) 377-7638
Fax: (303) 780-0787
Type: Mailing
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 $114.
Total Amount is formed as General ($114) + Research ($0) + Ownership ($0) = $114.
Last reported payment date: 2023-02-07 • Largest payer in this snapshot: Inari Medical, Inc. ($114).
Total Amount
$114
General + Research + Ownership
Payments
1
Total payment records
General Amount
$114
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Inari Medical, Inc. | $114 |
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: 2015-09-29
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 |
|---|---|---|---|---|
| I20150929002855 | I | Anesthesiology Assistant | CO | 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 |
|---|---|---|---|---|
| 01402 | Anesthesia for procedure for total knee joint replacement | 14 | 14 | $0 |
| 01214 | Anesthesia for total hip replacement | 12 | 11 | $0 |
| 00670 | Anesthesia for extensive surgery on spine | 11 | 11 | $0 |
Insurance plans in this area (ZIP 80111)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY ASSISTANT | OH | 00142 | Anesthesia for lens surgery | 18 | 18 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | CO | |
| - | CO | |
| - | CO | |
| - | CO | |
| - | CO | |
| - | CO | |
| A N E S T H E S I O L O G Y | CO | |
| - | CO | |
| A N E S T H E S I O L O G Y | COLORADO | |
| A N E S T H E S I O L O G Y | OH |
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