Daniel Albert Geller, MBBS

  • Boston, MA
  • Pediatrician
NPI1003807587
Part D claims, 2024
355
Hospital affiliations
2
Industry payments
$18
Medical groups
2
State license
1
Practice address
75 Francis Street, Boston, MA 02115
Practice phone
Call (617) 732-5500
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

Brigham and Women's Hospital

Hospital · Boston, Massachusetts

See all 5 affiliations

Find Daniel Geller'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

Daniel Albert Geller is a pediatrician in Boston, Massachusetts

Daniel Geller practices at Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham.

Daniel Geller's NPI, 1003807587, was assigned on November 2, 2005. Daniel Geller holds Massachusetts license 76259.

NPI and contact details
NPI enumeration date
November 2, 2005
NPI status
Active
Practice phone
(617) 732-5500
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

Daniel Albert Geller practices at Brigham and Women's Hospital in Boston, Massachusetts

Daniel Geller's primary practice is Brigham and Women's Hospital, at 75 Francis Street, Boston, MA 02115 in Suffolk County. The practice phone is (617) 732-5500.

Source: Dmand AI Affiliation Data

Daniel Albert Geller is affiliated with 3 sites of care and 2 medical groups

Daniel Geller's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Daniel Geller is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Daniel Geller to 1 more hospital outpatient department and 1 medical group, each named with a free account.

See all 5 affiliations for Daniel Geller

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

Dmand AI tracks the EHR system at Daniel Albert Geller's practice

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

EHR by site
SiteEHR vendor and product
Brigham and Women's HospitalAvailable with a free account
+2 more sites and 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 hospital where Daniel Geller practices

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

Daniel Albert Geller is one of 2,101 pediatricians in Massachusetts

Pediatrics is Daniel Geller's primary specialty in the NPI Registry, under taxonomy code 208000000X. Daniel Geller is licensed in Massachusetts.

Specialties and state licenses

  • Pediatrics, MassachusettsPrimaryLicense 76259 · taxonomy 208000000X

Pediatricians near Daniel Geller

Counts of pediatricians 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

Daniel Albert Geller's patients have a median age of 43

Across all payers, Dmand AI patient panel data puts Daniel Geller's median patient age at 43, with 17% women.

Daniel Geller's patients across all payers

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

Patient panel by age, all payers

Median age 43

Patient panel by sex, all payers

  • Women17%
  • Men83%

Source: Dmand AI Patient Panel Data

Daniel Albert Geller wrote 355 Medicare Part D claims in 2024

In 2024, Daniel Geller wrote 355 Medicare Part D claims for 16 patients. 93% of them were for generic drugs. CMS names the drug for 220 of them, across 12 drugs with 11 or more claims each, at $5,683 in total drug cost.

Part D claims, 2024355
Drugs named by CMS12
Total drug cost$5,683
Part D patients16

Daniel Geller's Part D claims by kind of drug, 2024

  • Generic329 claims93%
  • Brand-name26 claims7%

Daniel Geller's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Daniel Geller's Part D claims, 2024

  • Antibiotics3%11 of 355 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

See all prescribing by Daniel Geller

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

For MedTech and pharma teams

Find pediatricians like Daniel Geller 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.

Daniel Albert Geller received $18 in industry payments in 2025

CMS Open Payments shows 1 general payment to Daniel Geller from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Sun Pharmaceutical Industries Inc. paid the most, $18.

Companies that paid Daniel Geller the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Daniel Geller

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

Sources for Daniel Albert Geller'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
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare 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 Daniel Albert Geller

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

What is Daniel Albert Geller's NPI number?

Daniel Albert Geller's NPI number is 1003807587. It was assigned on November 2, 2005, and it is active in the NPI Registry.

What does Daniel Albert Geller specialize in?

Daniel Albert Geller is a pediatrician in Boston, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).

Where does Daniel Albert Geller practice?

Daniel Geller practices at 75 Francis Street, Boston, MA 02115. Daniel Geller's primary practice is Brigham and Women's Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Daniel Geller to 1 hospital outpatient department and 1 medical group.

What is Daniel Albert Geller's office phone number?

The practice phone on file for Daniel Geller is (617) 732-5500.

What is Daniel Albert Geller's medical license number?

Daniel Geller holds Massachusetts license 76259.

Which hospitals is Daniel Albert Geller affiliated with?

Daniel Geller practices at Brigham and Women's Hospital in Boston, Massachusetts. Daniel Geller is also affiliated with Massachusetts General Hospital.

What medical group is Daniel Albert Geller part of?

Daniel Geller is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Daniel Geller to 1 more medical group.

What drugs does Daniel Albert Geller prescribe most?

In 2024 Medicare Part D data, Daniel Geller's most prescribed drugs by claims were Fluoxetine HCl, Venlafaxine HCl ER and Clomipramine HCl.

Has Daniel Albert Geller received payments from drug or device companies?

CMS Open Payments shows $18 in general payments to Daniel Geller from 1 company from 2025 to 2025. The largest total came from Sun Pharmaceutical Industries Inc.

How long has Daniel Albert Geller been practicing?

Daniel Geller's NPI was assigned in 2005.

Selling to pediatrics practices?

See pediatricians in Massachusetts 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)