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Mary Harshberger
NPI 1811846512 · Physician Assistant · Oswego, IL
Mary Harshberger is a Physician Assistant provider in Oswego, IL (NPI 1811846512).
Provider details
- NPI number
- 1811846512
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Basic profile(47/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
457 Burr Oak Dr
Oswego, IL 60543-7503
Phone: (630) 486-6498
Street-level locationGet directions
Mailing address
457 Burr Oak Dr
Oswego, IL 60543-7503
Registry dates
- Enumerated
- 2026-01-26
- Last updated
- 2026-01-26
- Certified
- 2026-01-26
Frequently asked questions
- What is Mary Harshberger's NPI number?
- Mary Harshberger's National Provider Identifier (NPI) is 1811846512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Harshberger's specialty?
- Mary Harshberger is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Harshberger located?
- Mary Harshberger's practice location on file with NPPES is 457 Burr Oak Dr, Oswego, IL 60543-7503.
- What is Mary Harshberger's phone number?
- The practice phone number listed in the NPPES registry for Mary Harshberger is (630) 486-6498.
- Is Mary Harshberger's NPI active?
- Yes — Mary Harshberger's NPI (1811846512) is active in the NPPES registry as of the last update on 2026-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.