Provider Profile
Johanna C. Montoya Castillo, PA-C is a physician assistant practicing in Chicago, IL. Johanna is also listed as specializing in physician assistant — medical. According to Medicare claims data, Johanna cared for 299 Medicare patients across 514 services. The services billed most often include detection test by nucleic acid for organism, amplified probe technique, detection test by immunoassay with direct visual observation for influenza virus, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1205348976.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
2355 S WESTERN AVE
Chicago, IL 60608
1111 Superior St Ste 506
Melrose Park, IL 60160
514 services · 299 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Detection test by nucleic acid for organism, amplified probe technique | Lab test | 87798 |
139 | Too few peers to compare |
| Detection test by immunoassay with direct visual observation for influenza virus | Lab test | 87804 |
76 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
54 | As often as other peers in Physician Assistant |
| Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique | Lab test | 87651 |
44 | More often than most peers in Physician Assistant |
| Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus | Lab test | 87426 |
40 | More often than most peers in Physician Assistant |
| Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | Lab test | 87635 |
39 | More often than most peers in Physician Assistant |
| Detection test by nucleic acid for respiratory syncytial virus, amplified probe technique | Lab test | 87634 |
39 | Too few peers to compare |
| Detection test by nucleic acid for multiple types influenza virus | Lab test | 87502 |
39 | More often than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
29 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
15 | 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.
Johanna C. Montoya Castillo is a physician assistant in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Johanna C. Montoya Castillo is listed at 2355 S Western Ave, Chicago, IL 60608. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (773) 254-1400. Contact the office directly to confirm availability and scheduling.
NPI registry
Johanna C. Montoya Castillo's National Provider Identifier is 1205348976. 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
Johanna C. Montoya Castillo attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
Johanna C. Montoya Castillo has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Johanna C. Montoya Castillo the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Johanna C. Montoya Castillo. If this is you, claiming it is free.
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