Physician Profile
Howard S. An, MD
Unclaimed ProfileAbout Dr. An
Howard S. An, MD practices orthopaedic surgery of the spine in Chicago, IL. Medicare claims data shows Howard provided 235 services to 200 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (312) 243-4244
- Email not available
Practice Locations
1611 W HARRISON ST # 400
Chicago, IL 60612
Procedures Most Often Billed to Medicare
235 services · 200 patients · 6 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| X-ray of lower and sacral spine, 2-3 views | Imaging | 72100 |
78 |
| X-ray of upper spine, 2-3 views | Imaging | 72040 |
28 |
| Mri scan of lower spinal canal without contrast | Imaging | 72148 |
11 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
59 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
34 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
25 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other orthopaedic surgery of the spines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 14 related providers in 2 groups
Other orthopaedic surgery of the spines in Chicago 6
Same specialty, same city.
Also performs X-ray of lower and sacral spine, 2-3 views 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Dr. An's specialty?
Dr. An is an orthopaedic surgery of the spine in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. An?
Dr. An is listed at 1611 W Harrison St # 400, Chicago, IL 60612. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. An?
The number on file is (312) 243-4244. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. An?
Dr. An's National Provider Identifier is 1255310157. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. An have?
Dr. An has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Dr. An known for?
According to Medicare billing data, Dr. An performs imaging including x-ray of lower and sacral spine, 2-3 views and x-ray of upper spine, 2-3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. An's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. An. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.