DR. HOWARD S AN (MD) – Orthopaedic Surgery of the Spine Physician, NPI 1255310157
Orthopaedic Surgery of the Spine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. HOWARD S AN (MD)
Subway, 1611, West Harrison Street, Near West Side, Illinois Medical District, Chicago, Illinois Medical District, Illinois, 60607, United States
# 400
CHICAGO, IL 606123841
Phone: (312) 243-4244
Fax: (312) 942-1517
Type: Location
Westbrook Corporate Center, Westchester, Proviso Township, Cook County, Illinois, United States
SUITE #240
WESTCHESTER, IL 601545701
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $553.
Total Amount is formed as General ($553) + Research ($0) + Ownership ($0) = $553.
Last reported payment date: 2024-07-16 • Largest payer in this snapshot: Medtronic, Inc. ($156).
Total Amount
$553
General + Research + Ownership
Payments
5
Total payment records
General Amount
$553
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-07-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Medtronic, Inc. | $156 |
| ZIMVIE INC. | $147 |
| SI-BONE, INC. | $129 |
| Highridge Medical LLC | $93 |
| Heron Therapeutics, Inc. | $29 |
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: 2006-08-29
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 |
|---|---|---|---|---|
| I20060829000543 | I | Orthopedic Surgery | IL | 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 |
|---|---|---|---|---|
| 72100 | X-ray of lower and sacral spine, 2-3 views | 162 | 121 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 97 | 74 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 69 | 69 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 49 | 47 | $0 |
| 72040 | X-ray of upper spine, 2-3 views | 43 | 37 | $0 |
Insurance plans in this area (ZIP 60612)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ORTHOPEDIC SURGERY | IL | 63048 | Partial removal of spine bone with release of spinal cord and/or nerves | 26 | 18 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| - | IL | |
| Occupational Therapist In Private Practice | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL |
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