Provider Profile
Sarah A. Gilfillan, PA
Unclaimed ProfileAbout Sarah Gilfillan
Sarah A. Gilfillan, PA is a physician assistant based in Des Plaines, IL. Sarah is a 2022 graduate of Saint Louis University School of Medicine. Sarah is also listed as specializing in student in an organized health care education program. Medicare claims data shows Sarah provided 91 services to 80 patients. The services billed most often include new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and insertion of needle into vein for collection of blood sample.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (312) 767-3244
- Email not available
Practice Locations
900 RAND RD STE 120
Des Plaines, IL 60016
17850 Kedzie Ave Ste 3500
Hazel Crest, IL 60429
3437 Caroline St
Saint Louis, MO 63104
Procedures Most Often Billed to Medicare
91 services · 80 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
15 | Less often than most peers in Physician Assistant |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
40 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
36 | Less often than most peers in Physician Assistant |
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 physician assistants at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
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 — 28 related providers in 4 groups
Other physician assistants in Des Plaines 6
Same specialty, same city.
Trained at Saint Louis University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Saint Louis University School of Medicine 6
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Sarah A. Gilfillan specialize in?
Sarah A. Gilfillan is a physician assistant in Des Plaines, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Sarah A. Gilfillan located?
Sarah A. Gilfillan is listed at 900 Rand Rd Ste 120, Des Plaines, IL 60016. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Sarah A. Gilfillan's phone number?
The number on file is (312) 767-3244. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Sarah A. Gilfillan?
Sarah A. Gilfillan's National Provider Identifier is 1043971435. 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
Where did Sarah A. Gilfillan train?
Sarah A. Gilfillan attended Saint Louis University School of Medicine, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Sarah A. Gilfillan have?
Sarah A. Gilfillan has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
What does Sarah A. Gilfillan do most often?
According to Medicare billing data, Sarah A. Gilfillan performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Sarah A. Gilfillan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Sarah A. Gilfillan. 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.