Mark Nitti, OD

  • Greenwich, CT
  • Optometrist
NPI1104975804
Hospital affiliations
1
Medical groups
2
State license
1
Year NPI issued
2007
Practice address
5 Perryridge Rd, Greenwich, CT 06830
Practice phone
Call (203) 863-3000
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Greenwich Hospital

Hospital · Greenwich, Connecticut

See all 5 affiliations

Find Mark Nitti'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

Mark Nitti is an optometrist in Greenwich, Connecticut

Mark Nitti practices at Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System.

Mark Nitti's NPI, 1104975804, was assigned on January 10, 2007. Mark Nitti holds New Jersey license 27OA00457900.

NPI and contact details
NPI enumeration date
January 10, 2007
NPI status
Active
Practice phone
(203) 863-3000
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 Affiliation Data

Mark Nitti practices at Greenwich Hospital in Greenwich, Connecticut

Mark Nitti's primary practice is Greenwich Hospital, at 5 Perryridge Rd, Greenwich, CT 06830 in Fairfield County. The practice phone is (203) 863-3000.

  • Greenwich Hospital
    5 Perryridge Rd, Greenwich, CT 06830 · Fairfield CountyPhone(203) 863-3000

Source: Dmand AI Affiliation Data

Mark Nitti is affiliated with 3 sites of care and 2 medical groups

Mark Nitti's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dmand AI also links Mark Nitti to 2 group practices and clinics and 2 medical groups, each named with a free account.

See all 5 affiliations for Mark Nitti

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Mark Nitti's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Mark Nitti practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Greenwich HospitalAvailable with a free account
+2 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Mark Nitti practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Yale New Haven Health System and 6.2K+ hospitals, with verified contacts in the same login.

Mark Nitti is one of 468 optometrists in Connecticut

Optometrist is Mark Nitti's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Mark Nitti is licensed in New Jersey.

Specialties and state licenses

  • Optometrist, New JerseyPrimaryLicense 27OA00457900 · taxonomy 152W00000X

Optometrists near Mark Nitti

Counts of optometrists 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

Mark Nitti's patients have a median age of 63

Across all payers, Dmand AI patient panel data puts Mark Nitti's median patient age at 63, with 40% women.

Mark Nitti's patients across all payers

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

Patient panel by age, all payers

Median age 63

Patient panel by sex, all payers

  • Women40%
  • Men58%

Source: Dmand AI Patient Panel Data

Sources for Mark Nitti'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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 Mark Nitti

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

What is Mark Nitti's NPI number?

Mark Nitti's NPI number is 1104975804. It was assigned on January 10, 2007, and it is active in the NPI Registry.

What does Mark Nitti specialize in?

Mark Nitti is an optometrist in Greenwich, Connecticut. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).

Where does Mark Nitti practice?

Mark Nitti practices at 5 Perryridge Rd, Greenwich, CT 06830. Mark Nitti's primary practice is Greenwich Hospital in Greenwich, Connecticut, part of Yale New Haven Health System. Dmand AI also links Mark Nitti to 2 group practices and clinics and 2 medical groups.

What is Mark Nitti's office phone number?

The practice phone on file for Mark Nitti is (203) 863-3000.

What is Mark Nitti's medical license number?

Mark Nitti holds New Jersey license 27OA00457900.

Which hospitals is Mark Nitti affiliated with?

Mark Nitti practices at Greenwich Hospital in Greenwich, Connecticut.

How long has Mark Nitti been practicing?

Mark Nitti's NPI was assigned in 2007.

Selling to optometrist practices?

See optometrists in Connecticut 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)