OrganizationActive
Amelia Mari Merz
NPI 1346840659 · Psychiatry Physician · Oak Park, IL
Amelia Mari Merz is a Psychiatry Physician organization in Oak Park, IL (NPI 1346840659).
Provider details
- NPI number
- 1346840659
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Laurie Guagenti, Credentialing Coordinator(312) 480-5186
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(63/100 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
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
1101 Lake St Ste 201b
Oak Park, IL 60301-1046
Phone: (708) 232-3227
Approximate (ZIP-level) locationGet directions
Mailing address
1101 Lake St Ste 201b
Oak Park, IL 60301-1046
Other names (DBA / former)
- Doing business as
- Monarch Psychiatric Services Ltd
Registry dates
- Enumerated
- 2020-10-27
- Last updated
- 2020-10-27
- Certified
- 2020-10-27
Frequently asked questions
- What is Amelia Mari Merz's NPI number?
- Amelia Mari Merz's National Provider Identifier (NPI) is 1346840659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Amelia Mari Merz?
- Amelia Mari Merz is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Amelia Mari Merz located?
- Amelia Mari Merz's practice location on file with NPPES is 1101 Lake St Ste 201b, Oak Park, IL 60301-1046.
- What is Amelia Mari Merz's phone number?
- The practice phone number listed in the NPPES registry for Amelia Mari Merz is (708) 232-3227.
- Who is the authorized official for Amelia Mari Merz?
- The authorized official listed on Amelia Mari Merz's NPPES record is Laurie Guagenti, Credentialing Coordinator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Amelia Mari Merz's NPI active?
- Yes — Amelia Mari Merz's NPI (1346840659) is active in the NPPES registry as of the last update on 2020-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.