What is Erin Grupp's NPI number?

Erin Grupp's National Provider Identifier (NPI) is 1396331013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Erin Grupp's specialty?

Erin Grupp is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).

Where is Erin Grupp located?

Erin Grupp's practice location on file with NPPES is 8409 Merrillville Rd, Merrillville, IN 46410-6109.

What is Erin Grupp's phone number?

The practice phone number listed in the NPPES registry for Erin Grupp is (219) 205-3463.

Is Erin Grupp's NPI active?

Yes — Erin Grupp's NPI (1396331013) is active in the NPPES registry as of the last update on 2026-03-12.

IndividualActive

Erin Grupp

NPI 1396331013 · Occupational Therapist · Merrillville, IN

Erin Grupp is a Occupational Therapist provider in Merrillville, IN (NPI 1396331013).

Provider details

NPI number: 1396331013
Entity type: Individual
Primary specialty: Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Sex: Female
Sole proprietor: No
License: 31008991A (IN)

Specialties & taxonomies

Occupational TherapistPrimary225X00000XLicense 31008991A (IN)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Occupational Therapy Assistant224Z00000XLicense 057.005351 (IL)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Profile Score

Established profile(72/100 index)

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

Registry tenure38% of score
5 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
5 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

8409 Merrillville Rd

Merrillville, IN 46410-6109

Phone: (219) 205-3463

Fax: (317) 520-8200

Street-level locationGet directions

Mailing address

3500 Depauw Blvd Ste 3070

Indianapolis, IN 46268-6135

Additional practice locations (4)

505 S 3rd St
Elkhart, IN 46516-3252
Phone: (574) 359-6796
Fax: (317) 520-8200
1946 45th St Ste a
Munster, IN 46321-3956
Phone: (219) 332-0033
Fax: (317) 520-8200
17551 Generations Dr
South Bend, IN 46635-1589
Phone: (574) 400-2169
Fax: (317) 520-8200
551 Eastport Centre Dr
Valparaiso, IN 46383-2898
Phone: (219) 255-2454
Fax: (317) 520-8200

Enumerated: 2020-12-16
Last updated: 2026-03-12
Certified: 2026-03-12

Frequently asked questions

What is Erin Grupp's NPI number?: Erin Grupp's National Provider Identifier (NPI) is 1396331013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Erin Grupp's specialty?: Erin Grupp is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
Where is Erin Grupp located?: Erin Grupp's practice location on file with NPPES is 8409 Merrillville Rd, Merrillville, IN 46410-6109.
What is Erin Grupp's phone number?: The practice phone number listed in the NPPES registry for Erin Grupp is (219) 205-3463.
Is Erin Grupp's NPI active?: Yes — Erin Grupp's NPI (1396331013) is active in the NPPES registry as of the last update on 2026-03-12.

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