Anthony D. Overhiser, LDN, RD

  • Oak Park, IL
  • Registered dietitian
NPI1437946688
Medical group
1
State license
1
Year NPI issued
2025
Practice address
1114 Lake St, Oak Park, IL 60301
Practice phone
Call (312) 648-4666
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Formuliferx

Oak Park, Illinois

Find Anthony Overhiser's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Anthony D. Overhiser is a registered dietitian in Oak Park, Illinois

Anthony Overhiser practices at Formuliferx in Oak Park, Illinois.

Anthony Overhiser's NPI, 1437946688, was assigned on April 22, 2025. Anthony Overhiser holds Illinois license 164.010826.

NPI and contact details
NPI enumeration date
April 22, 2025
NPI status
Active
Practice phone
(312) 648-4666
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data

Anthony D. Overhiser practices at Formuliferx in Oak Park, Illinois

Anthony Overhiser's primary practice is Formuliferx, at 1114 Lake St, Oak Park, IL 60301 in Cook County. The practice phone is (312) 648-4666.

  • Formuliferx
    1114 Lake St, Oak Park, IL 60301 · Cook CountyPhone(312) 648-4666

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Anthony D. Overhiser is affiliated with 1 site of care and 1 medical group

Anthony Overhiser's primary practice is Formuliferx in Oak Park, Illinois. The medical group on file is Fay Nutrition.

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Anthony D. Overhiser's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Anthony Overhiser practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
FormuliferxAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Anthony Overhiser practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.

Anthony D. Overhiser is one of 2,002 registered dietitians in Illinois

Dietitian, registered is Anthony Overhiser's primary specialty in the NPI Registry, under taxonomy code 133V00000X. Anthony Overhiser is licensed in Illinois.

Specialties and state licenses

  • Registered dietitian, IllinoisPrimaryLicense 164.010826 · taxonomy 133V00000X

Registered dietitians near Anthony Overhiser

Counts of registered dietitians with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Anthony D. Overhiser's patients have a median age of 30

Across all payers, Dmand AI patient panel data puts Anthony Overhiser's median patient age at 30, with 46% women.

Anthony Overhiser's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 30

Patient panel by sex, all payers

  • Women46%
  • Men54%

Source: Dmand AI Patient Panel Data

Sources for Anthony D. Overhiser's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Anthony D. Overhiser

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Anthony D. Overhiser's NPI number?

Anthony D. Overhiser's NPI number is 1437946688. It was assigned on April 22, 2025, and it is active in the NPI Registry.

What does Anthony D. Overhiser specialize in?

Anthony D. Overhiser is a registered dietitian in Oak Park, Illinois. The primary specialty in the NPI Registry is Registered Dietitian (taxonomy code 133V00000X).

Where does Anthony D. Overhiser practice?

Anthony Overhiser practices at 1114 Lake St, Oak Park, IL 60301. Anthony Overhiser's primary practice is Formuliferx in Oak Park, Illinois.

What is Anthony D. Overhiser's office phone number?

The practice phone on file for Anthony Overhiser is (312) 648-4666.

What is Anthony D. Overhiser's medical license number?

Anthony Overhiser holds Illinois license 164.010826.

What medical group is Anthony D. Overhiser part of?

Anthony Overhiser is linked to Fay Nutrition.

How long has Anthony D. Overhiser been practicing?

Anthony Overhiser's NPI was assigned in 2025.

Selling to dietitian, registered practices?

See registered dietitians in Illinois by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)