Michael Darwin Spencer, DDS

  • Jacksonville, FL
  • General practice dentistry
NPI1245340249
Part D claims, 2024
113
Industry payments
$103
Affiliated sites
1
Medical group
1
State license
1
Practice address
1061 Riverside Ave, Jacksonville, FL 32204-4152
Practice phone
Call (904) 355-5531
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Riverside Dental

Dental practice · Jacksonville, Florida

See all 2 affiliations

Find Michael Spencer'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

Michael Darwin Spencer is a general practice dentistry in Jacksonville, Florida

Michael Spencer practices at Riverside Dental in Jacksonville, Florida.

Michael Spencer's NPI, 1245340249, was assigned on August 30, 2006. Michael Spencer holds Florida license 8985.

NPI and contact details
NPI enumeration date
August 30, 2006
NPI status
Active
Practice phone
(904) 355-5531
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Michael Darwin Spencer practices at Riverside Dental in Jacksonville, Florida

Michael Spencer's primary practice is Riverside Dental, at 1061 Riverside Ave, Jacksonville, FL 32204-4152. The practice phone is (904) 355-5531.

  • Riverside Dental
    1061 Riverside Ave, Jacksonville, FL 32204-4152Phone(904) 355-5531

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Michael Darwin Spencer is affiliated with 1 site of care and 1 medical group

Michael Spencer's primary practice is Riverside Dental in Jacksonville, Florida. Dmand AI also links Michael Spencer to 1 medical group, named with a free account.

Riverside DentalDental practice · Jacksonville, FloridaPrimary
1 medical groupName with a free account
See all 2 affiliations for Michael Spencer

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Michael Darwin Spencer's practice

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

EHR by site
SiteEHR vendor and product
Riverside DentalAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every site where Michael Spencer 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.

Michael Darwin Spencer is one of 2,803 general practice dentistrys in Florida

General practice is Michael Spencer's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Michael Spencer is licensed in Florida.

Specialties and state licenses

  • General practice dentistry, FloridaPrimaryLicense 8985 · taxonomy 1223G0001X

General practice dentistrys near Michael Spencer

Counts of general practice dentistrys 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

Michael Darwin Spencer wrote 113 Medicare Part D claims in 2024

In 2024, Michael Spencer wrote 113 Medicare Part D claims for 51 patients. 98% of them were for generic drugs.

Part D claims, 2024113
Part D patients51

Michael Spencer's Part D claims by kind of drug, 2024

  • Generic111 claims98%
  • Brand-name and other2 claims2%

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

For MedTech and pharma teams

Find general practice dentistrys like Michael Spencer by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Michael Darwin Spencer received $103 in industry payments in 2025

CMS Open Payments shows 2 general payments to Michael Spencer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Straumann USA LLC paid the most, $103.

Companies that paid Michael Spencer the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Michael Spencer

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Michael Darwin Spencer'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Michael Darwin Spencer

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

What is Michael Darwin Spencer's NPI number?

Michael Darwin Spencer's NPI number is 1245340249. It was assigned on August 30, 2006, and it is active in the NPI Registry.

What does Michael Darwin Spencer specialize in?

Michael Darwin Spencer is a general practice dentistry in Jacksonville, Florida. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).

Where does Michael Darwin Spencer practice?

Michael Spencer practices at 1061 Riverside Ave, Jacksonville, FL 32204-4152. Michael Spencer's primary practice is Riverside Dental in Jacksonville, Florida. Dmand AI also links Michael Spencer to 1 medical group.

What is Michael Darwin Spencer's office phone number?

The practice phone on file for Michael Spencer is (904) 355-5531.

What is Michael Darwin Spencer's medical license number?

Michael Spencer holds Florida license 8985.

Has Michael Darwin Spencer received payments from drug or device companies?

CMS Open Payments shows $103 in general payments to Michael Spencer from 1 company from 2025 to 2025. The largest total came from Straumann USA LLC.

How long has Michael Darwin Spencer been practicing?

Michael Spencer's NPI was assigned in 2006.

Selling to general practice practices?

See general practice dentistrys in Florida 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)