DR. ESTEBAN ALBERTO GUERRERO (M.D.) – Internal Medicine Physician, NPI 1790247831
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
8,828 INTERNAL MEDICINE in IL
Provider Addresses for DR. ESTEBAN ALBERTO GUERRERO (M.D.)
3 ERIE CT STE L700
OAK PARK, IL 603022519
Phone: (708) 763-1222
Fax: (708) 763-1471
Type: Location
3160 FOLSOM BLVD STE 2500
SACRAMENTO, CA 958165267
Phone: (916) 734-7777
Fax: (916) 451-1079
Type: Location
45 MEADOWLARK RD
SANTA YNEZ, CA 934609442
Phone: (214) 629-0625
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2023-04-04
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 |
|---|---|---|---|---|
| I20230404001499 | I | Internal Medicine | CA | 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 | 364 | 211 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 306 | 224 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 91 | 75 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 68 | 68 | $0 |
| G0008 | Administration of influenza virus vaccine | 53 | 53 | $0 |
Insurance plans in this area (ZIP 60302)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| Family Practice | CA | |
| Marriage And Family Therapist | CA | |
| Clinical Psychologist | CA | |
| Family Practice | AZ | |
| Marriage And Family Therapist | CA | |
| O P T O M E T R Y | CA | |
| C H I R O P R A C T I C | CA | |
| - | CA |
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