IndividualActiveAccepts Medicare

Mary-Katherine Butler, PA-C

NPI 1326524729 · Physician Assistant · Chicago, IL

Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Provider details

NPI number: 1326524729
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Credential: PA-C
Sex: Female
Sole proprietor: No
License: 085007822 (IL)

Specialties & taxonomies

Physician AssistantPrimary363A00000XLicense 085007822 (IL)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Established profile(55/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure28% of score
7 yrs in NPPES registry
Profile completeness28% of score
100% of core fields populated
Practice footprint17% of score
2 documented practice locations
Medicare service volume (vs. specialty peers)28% of score
102 Medicare services, 2024 (ranked within specialty)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213	83	$82
New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203	19	$102

Typical Medicare-allowed amounts for these services range $82–$102 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Gabapentin	130	46
Cyclobenzaprine Hcl	41	35
Diclofenac Sodium	31	19
Oxycodone Hcl	29	18
Celecoxib	27	11
Tramadol Hcl	26	16
Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen	22

Practice location

259 E Erie St Fl 13

Chicago, IL 60611-3926

Phone: (312) 695-6800

Fax: (312) 472-4877

Street-level locationGet directions

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Mailing address