What is Katherine Hillig's NPI number?

Katherine Hillig's National Provider Identifier (NPI) is 1558735712, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Katherine Hillig's specialty?

Katherine Hillig is listed in the NPPES registry with a primary specialty of Neonatal Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Katherine Hillig located?

Katherine Hillig's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.

What is Katherine Hillig's phone number?

The practice phone number listed in the NPPES registry for Katherine Hillig is (734) 936-4000.

Is Katherine Hillig's NPI active?

Yes — Katherine Hillig's NPI (1558735712) is active in the NPPES registry as of the last update on 2026-02-23.

IndividualActive

Katherine Hillig, NNP-BC

NPI 1558735712 · Neonatal Nurse Practitioner · Ann Arbor, MI

Katherine Hillig, NNP-BC is a Neonatal Nurse Practitioner provider in Ann Arbor, MI (NPI 1558735712).

Provider details

NPI number: 1558735712
Entity type: Individual
Primary specialty: Neonatal Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: NNP-BC
Sex: Female
Sole proprietor: No
License: 4704227723 (MI)

Specialties & taxonomies

Neonatal Nurse PractitionerPrimary363LN0000XLicense 4704227723 (MI)
Physician Assistants & Advanced Practice Nursing Providers
Nurse Practitioner363L00000XLicense 4704227723 (MI)
Physician Assistants & Advanced Practice Nursing Providers
Critical Care Neonatal Nurse Practitioner363LN0005XLicense APN.0992095-NP (CO)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Detailed profile(82/100 index)

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

Registry tenure38% of score
10 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
3 documented practice locations

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

1500 E Medical Center Dr

Ann Arbor, MI 48109-5000

Phone: (734) 936-4000

Street-level locationGet directions

More MI providers

Mailing address

3621 S State St

Ann Arbor, MI 48108-1633

Additional practice locations (2)

13123 E 16th Ave
Aurora, CO 80045-7106
Phone: (720) 777-6857
5301 Mcauley Dr
Ypsilanti, MI 48197-1051
Phone: (734) 712-3325
Fax: (734) 712-5525

Enumerated: 2015-11-25
Last updated: 2026-02-23
Certified: 2026-02-23

Frequently asked questions

What is Katherine Hillig's NPI number?: Katherine Hillig's National Provider Identifier (NPI) is 1558735712, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Katherine Hillig's specialty?: Katherine Hillig is listed in the NPPES registry with a primary specialty of Neonatal Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Katherine Hillig located?: Katherine Hillig's practice location on file with NPPES is 1500 E Medical Center Dr, Ann Arbor, MI 48109-5000.
What is Katherine Hillig's phone number?: The practice phone number listed in the NPPES registry for Katherine Hillig is (734) 936-4000.
Is Katherine Hillig's NPI active?: Yes — Katherine Hillig's NPI (1558735712) is active in the NPPES registry as of the last update on 2026-02-23.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.