Ross Greenstein, PA
NPI 1598772071 · Physician Assistant · South Bend, IN
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ross Greenstein, PA is a Physician Assistant provider in South Bend, IN (NPI 1598772071).
Provider details
- NPI number
- 1598772071
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 085002270 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
6 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$429 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 10590 N Meridian St Ste 105Carmel, IN 46290-1028Phone: (317) 583-7800
- 500 Arcade Ave Ste 230Elkhart, IN 46514-2485Phone: (574) 522-6565Fax: (574) 522-5572
- 1100 E Michigan AveSuite 301Jackson, MI 49201-1847Phone: (517) 817-7609
- 3601 W 13 Mile RdRoyal Oak, MI 48073-6712Phone: (248) 898-4021
- 44201 Dequindre RdTroy, MI 48085-1117Phone: (248) 964-8432
Registry dates
- Enumerated
- 2006-08-01
- Last updated
- 2026-04-14
- Certified
- 2026-04-14
Frequently asked questions
- What is Ross Greenstein's NPI number?
- Ross Greenstein's National Provider Identifier (NPI) is 1598772071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ross Greenstein's specialty?
- Ross Greenstein is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ross Greenstein located?
- Ross Greenstein's practice location on file with NPPES is 610 N Michigan St Ste 306, South Bend, IN 46601-1079.
- What is Ross Greenstein's phone number?
- The practice phone number listed in the NPPES registry for Ross Greenstein is (574) 647-6500.
- Does Ross Greenstein accept Medicare?
- Ross Greenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ross Greenstein's NPI active?
- Yes — Ross Greenstein's NPI (1598772071) is active in the NPPES registry as of the last update on 2026-04-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.