VALLIKANTHA NELLAIAPPAN (M.D) – Endocrinology, Diabetes & Metabolism Physician, NPI 1548557812
Endocrinology, Diabetes & Metabolism Physician
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NPPES metrics only — not quality of care.
179 ENDOCRINOLOGY in IN
Provider Addresses for VALLIKANTHA NELLAIAPPAN (M.D)
1070 LAKEHURST DR
APT 111
WAUKEGAN, IL 600858259
Phone: (312) 550-2158
Type: Mailing
800 S TILLOTSON AVE
MUNCIE, IN 473044529
Phone: (765) 289-5410
Fax: (765) 281-2085
Type: Location
4448 W LOOMIS RD
GREENFIELD, WI 532204800
Phone: (414) 281-5150
Type: Location
700 ACKERMAN RD STE 2120
COLUMBUS, OH 432021559
Phone: (614) 685-3333
Type: Mailing
3691 RIDGE MILL DR
HILLIARD, OH 430267752
Phone: (614) 685-3333
Fax: (614) 688-9220
Type: Location
3333 Green Bay Rd
North Chicago, IL 600643037
Phone: (847) 578-3000
Type: Location
800 S Tillotson Ave
Muncie, IN 473044529
Phone: (765) 289-5410
Fax: (765) 281-2085
Type: Location
3691 Ridge Mill Dr
Hilliard, OH 430267752
Phone: (614) 685-3333
Fax: (614) 688-9220
Type: Location
PO BOX 735044
CHICAGO, IL 606735044
Phone: (414) 281-5150
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 $20.
Total Amount is formed as General ($20) + Research ($0) + Ownership ($0) = $20.
Last reported payment date: 2024-01-17 • Largest payer in this snapshot: Abbott Laboratories ($20).
Total Amount
$20
General + Research + Ownership
Payments
1
Total payment records
General Amount
$20
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-01-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $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: 2023-09-18
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 |
|---|---|---|---|---|
| I20230918002859 | I | Endocrinology | WI | 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 | 64 | 63 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 45 | 45 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 26 | 26 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 26 | 25 | $0 |
| 83036 | Hemoglobin a1c level | 17 | 15 | $0 |
Insurance plans in this area (ZIP 60085)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | WI | |
| - | WI | |
| - | WI | |
| - | WI | |
| Diagnostic Radiology | WI | |
| - | WI | |
| Family Practice | WI | |
| Family Practice, Geriatric Medicine | IL | |
| Diagnostic Radiology | IL | |
| - | WI |
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