What is Steven Posar's NPI number?

Steven Posar's National Provider Identifier (NPI) is 1154308575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Steven Posar's specialty?

Steven Posar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Steven Posar located?

Steven Posar's practice location on file with NPPES is 2100 N Main St Ste 304, Crown Point, IN 46307-1877.

What is Steven Posar's phone number?

The practice phone number listed in the NPPES registry for Steven Posar is (574) 546-1900.

Does Steven Posar accept Medicare?

Steven Posar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Steven Posar's NPI active?

Yes — Steven Posar's NPI (1154308575) is active in the NPPES registry as of the last update on 2026-04-07.

IndividualActiveAccepts Medicare

Steven Posar, MD

NPI 1154308575 · Internal Medicine Physician · Crown Point, IN

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

Steven Posar, MD is a Internal Medicine Physician provider in Crown Point, IN (NPI 1154308575).

Provider details

NPI number: 1154308575
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 35.138677 (OH)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 01046045A (IN)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 35.138677 (OH)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 04-50653 (KS)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 52736 (KY)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 2025044479 (MO)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense 4301036005 (MI)

Profile Score

Detailed profile(100/100 index)

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

Registry tenure33% of score
20 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
10 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.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.

Drug	Part D claims (2024)
Haloperidol	35
Olanzapine	17
Sertraline Hcl	17
Levetiracetam	12

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$78 across 2 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

2100 N Main St Ste 304

Crown Point, IN 46307-1877

Phone: (574) 546-1900

Fax: (574) 546-1999

Street-level locationGet directions

Mailing address

Po Box 10299

Fort Wayne, IN 46851-0299

Additional practice locations (9)

1821 Walden Office Sq Ste 400
Schaumburg, IL 60173-4273
Phone: (574) 546-1900
Fax: (574) 546-1999
12345 W 95th St Fl 2
Lenexa, KS 66215-3853
Phone: (574) 546-1900
Fax: (574) 546-1999
306 W Main St Ste 512
Frankfort, KY 40601-1840
Phone: (574) 546-1900
Fax: (574) 546-1999
40600 Ann Arbor Rd E Ste 201
Plymouth, MI 48170-4675
Phone: (574) 546-1900
Fax: (574) 546-1999
303 N Stadium Blvd Fl 2
Columbia, MO 65203-1493
Phone: (574) 546-1900
Fax: (574) 546-1999
21 E State St
Columbus, OH 43215-4281
Phone: (574) 546-1900
Fax: (574) 546-1999
311 E Pleasant Valley Blvd
Altoona, PA 16602-5512
Phone: (574) 546-1900
Fax: (574) 546-1999
6000 Poplar Ave Ste 250
Memphis, TN 38119-3974

Enumerated: 2005-12-28
Last updated: 2026-04-07
Certified: 2026-04-07

Frequently asked questions

What is Steven Posar's NPI number?: Steven Posar's National Provider Identifier (NPI) is 1154308575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Steven Posar's specialty?: Steven Posar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Steven Posar located?: Steven Posar's practice location on file with NPPES is 2100 N Main St Ste 304, Crown Point, IN 46307-1877.
What is Steven Posar's phone number?: The practice phone number listed in the NPPES registry for Steven Posar is (574) 546-1900.
Does Steven Posar accept Medicare?: Steven Posar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Steven Posar's NPI active?: Yes — Steven Posar's NPI (1154308575) is active in the NPPES registry as of the last update on 2026-04-07.

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