DR. ALFONSO A BLUM (M.) – Internal Medicine Physician, NPI 1790810448
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,511 INTERNAL MEDICINE in IN
Provider Addresses for DR. ALFONSO A BLUM (M.)
9660 WICKER AVENUE
ST JOHN, IN 463739487
Phone: (219) 226-2203
Fax: (219) 226-2202
Type: Mailing
4035 ELM STREET
EAST CHICAGO, IN 463123042
Phone: (219) 398-9840
Fax: (219) 398-9845
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 152 Open Payments records for all available years, with a total value of $2,642.
Total Amount is formed as General ($2,642) + Research ($0) + Ownership ($0) = $2,642.
Last reported payment date: 2024-12-10 • Largest payer in this snapshot: Amgen Inc. ($603).
Total Amount
$2,642
General + Research + Ownership
Payments
152
Total payment records
General Amount
$2,642
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Amgen Inc. | $603 |
| Novartis Pharmaceuticals Corporation | $423 |
| ABBVIE INC. | $335 |
| Dexcom, Inc. | $268 |
| Lundbeck LLC | $223 |
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: 2007-11-17
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 |
|---|---|---|---|---|
| I20071117000070 | I | Internal Medicine | IN | 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 | 289 | 85 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 61 | 46 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 39 | 31 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 34 | 32 | $0 |
| 99238 | Hospital discharge day management, 30 minutes or less | 29 | 19 | $0 |
Insurance plans in this area (ZIP 46373)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | IN | 83036 | Hemoglobin A1C level | 213 | 131 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | IN | |
| - | IL | |
| Nurse Practitioner | IN | |
| Nurse Practitioner | IN | |
| Nurse Practitioner | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | KY | |
| Internal Medicine | IN | |
| Internal Medicine | IN | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| Internal Medicine | IL |
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