DR. MICHAEL NASR MANKARIOUS (M.D.) – Internal Medicine Physician, NPI 1659375921
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,353 INTERNAL MEDICINE in IA
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Provider Addresses for DR. MICHAEL NASR MANKARIOUS (M.D.)
Mercy Family Clinic - Regency, 621, South Illinois Avenue, Regency, Mason City, Cerro Gordo County, Iowa, 50401, United States
SUITE 103
MASON CITY, IA 504015405
Phone: (641) 428-3041
Fax: (641) 428-3059
Type: Mailing
MercyOne, 638, South Bluff Boulevard, Clinton, Clinton County, Iowa, 52732, United States
CLINTON, IA 527324742
Phone: (563) 243-5601
Fax: (563) 243-5637
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 53 Open Payments records for all available years, with a total value of $1,037.
Total Amount is formed as General ($1,037) + Research ($0) + Ownership ($0) = $1,037.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($255).
Total Amount
$1,037
General + Research + Ownership
Payments
53
Total payment records
General Amount
$1,037
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2010-06-09
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 |
|---|---|---|---|---|
| I20100609000280 | I | Internal Medicine | 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 | 377 | 161 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 267 | 134 | $0 |
| 99308 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes | 266 | 73 | $0 |
| 99307 | Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | 109 | 49 | $0 |
| 99309 | Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | 54 | 38 | $0 |
Insurance plans in this area (ZIP 50401)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | IA | |
| - | IA | |
| Internal Medicine | IA | |
| P O D I A T R Y | MO | |
| Physician Assistant | IA | |
| U R O L O G Y | IA | |
| Cardiovascular Disease (Cardiology), Internal Medicine | IA | |
| Physician Assistant | IA | |
| - | IA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | MN |
Reviews
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