MARK WILLIAM MITTAUER (MD) – Psychiatry Physician, NPI 1255322996
Psychiatry Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
851 PSYCHIATRY in CT
Provider Addresses for MARK WILLIAM MITTAUER (MD)
RTE 12 BLDG 449
ATTN: PROFESSIONAL AFFAIRS
GROTON, CT 063495600
Phone: (860) 694-2377
Fax: (860) 694-2590
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 112 Open Payments records for all available years, with a total value of $1,934.
Total Amount is formed as General ($1,934) + Research ($0) + Ownership ($0) = $1,934.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: Otsuka America Pharmaceutical, Inc. ($344).
Total Amount
$1,934
General + Research + Ownership
Payments
112
Total payment records
General Amount
$1,934
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Otsuka America Pharmaceutical, Inc. | $344 |
| Alkermes, Inc. | $296 |
| Janssen Pharmaceuticals, Inc | $246 |
| ITI, Inc. | $159 |
| Teva Pharmaceuticals USA, Inc. | $149 |
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: 2008-09-11
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 |
|---|---|---|---|---|
| I20080911000248 | I | Psychiatry | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 63 | 21 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 16 | 11 | $0 |
| 90792 | Psychiatric diagnostic evaluation with medical services | 11 | 11 | $0 |
Insurance plans in this area (ZIP 06349)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IA | |
| Clinical Social Worker | IA | |
| P S Y C H I A T R Y | IA | |
| Mental Health Counselor | IA | |
| Clinical Social Worker | IA | |
| Nurse Practitioner | IA | |
| - | IA | |
| Clinical Social Worker | IA | |
| Clinical Social Worker | IA | |
| P S Y C H I A T R Y | IA |
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