MARGARET COLLEEN HASTINGS (MD) – Pediatric Nephrology Physician, NPI 1174544811
Pediatric Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,527 INTERNAL MEDICINE in TN
Provider Addresses for MARGARET COLLEEN HASTINGS (MD)
51 N Dunlap St
Ste. 400
Memphis, TN 38105
Phone: (901) 287-7337
Fax: (901) 287-4587
Type: Location
1068 CRESTHAVEN RD STE 300
MEMPHIS, TN 381190809
Phone:
Type: Mailing
1325 EASTMORELAND AVE STE 445
MEMPHIS, TN 381047536
Phone: (901) 866-8810
Fax: (901) 302-2450
Type: Location
49, North Dunlap Street, Medical District, Dixie Homes, Memphis, Shelby County, Tennessee, 38103, United States
MEMPHIS, TN 38103
Phone: (901) 287-5674
Fax: (901) 287-6804
Type: Mailing
51, North Dunlap Street, Medical District, Dixie Homes, Memphis, Shelby County, Tennessee, 38105, United States
STE. 400
MEMPHIS, TN 38105
Phone: (901) 287-7337
Fax: (901) 287-4587
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $109.
Total Amount is formed as General ($109) + Research ($0) + Ownership ($0) = $109.
Last reported payment date: 2024-08-09 • Largest payer in this snapshot: Novo Nordisk Inc ($88).
Total Amount
$109
General + Research + Ownership
Payments
2
Total payment records
General Amount
$109
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $88 |
| Fresenius USA Marketing, Inc. | $20 |
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: 2020-09-29
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040626000117 | I | Internal Medicine | TN | TBD |
| I20200929003274 | I | Nephrology | MS | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 167 | 68 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 128 | 21 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 83 | 46 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 59 | 23 | $0 |
| 90961 | Dialysis services, 2-3 physician visits per month (20 years or older) | 40 | 17 | $0 |
Insurance plans in this area (ZIP 38105)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | MS | |
| Cardiovascular Disease (Cardiology), Interventional Cardiology, Pediatric Medicine, Cardiovascular Disease (Cardiology), Interventional Cardiology | TN | |
| - | TN | |
| - | TN | |
| - | TN | |
| - | TN | |
| Diagnostic Radiology | TN | |
| Nephrology, Pediatric Medicine, Nephrology, Pediatric Medicine | TX | |
| Pediatric Medicine, Nephrology | TX | |
| - | TN |
Reviews
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