Tennenbaum and Anstadt, Ltd
NPI 1750495321 · Ophthalmology Physician · Melrose Park, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tennenbaum and Anstadt, Ltd is a Ophthalmology Physician organization in Melrose Park, IL (NPI 1750495321).
Provider details
- NPI number
- 1750495321
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Brad Anstadt, President(708) 450-4510
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% 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
Mailing address
Other names (DBA / former)
- Doing business as
- Gottlieb Eye Center
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2020-06-22
- Certified
- 2020-06-22
Frequently asked questions
- What is Tennenbaum and Anstadt, Ltd's NPI number?
- Tennenbaum and Anstadt, Ltd's National Provider Identifier (NPI) is 1750495321, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Tennenbaum and Anstadt, Ltd?
- Tennenbaum and Anstadt, Ltd is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Tennenbaum and Anstadt, Ltd located?
- Tennenbaum and Anstadt, Ltd's practice location on file with NPPES is 675 W North Ave, Melrose Park, IL 60160-1634.
- What is Tennenbaum and Anstadt, Ltd's phone number?
- The practice phone number listed in the NPPES registry for Tennenbaum and Anstadt, Ltd is (708) 450-4510.
- Does Tennenbaum and Anstadt, Ltd accept Medicare?
- Tennenbaum and Anstadt, Ltd is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Tennenbaum and Anstadt, Ltd?
- The authorized official listed on Tennenbaum and Anstadt, Ltd's NPPES record is Brad Anstadt, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Tennenbaum and Anstadt, Ltd's NPI active?
- Yes — Tennenbaum and Anstadt, Ltd's NPI (1750495321) is active in the NPPES registry as of the last update on 2020-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.