Dr. Guillermo G. Gallardo, MD
- Part D claims, 2024
- 36
- Industry payments
- $103
- Affiliated sites
- 4
- Medical groups
- 5
- State licenses
- 2
- Practice address
- 102 Graham Ave, Brooklyn, NY 11206
- Practice phone
- Call (718) 406-0478
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Graham Eye Care
Brooklyn, New York
Find Dr. Gallardo'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.
Dr. Guillermo G. Gallardo is an ophthalmologist in Brooklyn, New York
Dr. Gallardo practices at Graham Eye Care in Brooklyn, New York.
Dr. Gallardo's NPI, 1134342439, was assigned on April 11, 2007. Dr. Gallardo graduated from New York Medical College in 1988. Dr. Gallardo holds New York license 197574.
- NPI
- 1134342439NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365768942
- NPI enumeration date
- April 11, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (718) 406-0478
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Guillermo G. Gallardo practices at Graham Eye Care in Brooklyn, New York
Dr. Gallardo's primary practice is Graham Eye Care, at 102 Graham Ave, Brooklyn, NY 11206 in Kings County. The practice phone is (718) 406-0478.
- Graham Eye Care102 Graham Ave, Brooklyn, NY 11206 · Kings CountyPhone(718) 406-0478
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Guillermo G. Gallardo is affiliated with 5 sites of care and 5 medical groups
Dr. Gallardo's primary practice is Graham Eye Care in Brooklyn, New York. The medical group on file is Essen Medical Associates. Dmand AI also links Dr. Gallardo to 4 more group practices and clinics and 4 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Guillermo G. Gallardo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gallardo practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Graham Eye Care | Available with a free account |
| +4 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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.
Dr. Guillermo G. Gallardo is one of 1,467 ophthalmologists in New York
Ophthalmology is Dr. Gallardo's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Gallardo's licenses on file in 2 states: New York and Connecticut.
Specialties and state licenses
- Ophthalmology, New YorkPrimary
- Connecticut license
Ophthalmologists near Dr. Gallardo
Counts of ophthalmologists 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
Dr. Guillermo G. Gallardo's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Gallardo's median patient age at 43, with 62% women.
Dr. Gallardo'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
- Women62%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Guillermo G. Gallardo wrote 36 Medicare Part D claims in 2024
In 2024, Dr. Gallardo wrote 36 Medicare Part D claims for 12 patients. 67% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $103 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
Dr. Gallardo's Part D claims by kind of drug, 2024
- Generic24 claims67%
- Brand-name12 claims33%
Dr. Gallardo'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 342024: 1750%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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
How Dr. Guillermo G. Gallardo takes part in Medicare
Dr. Gallardo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Guillermo G. Gallardo received $103 in industry payments from 2018 to 2025
CMS Open Payments shows 3 general payments to Dr. Gallardo from 3 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Shire North American Group Inc paid the most, $45.
General payments to Dr. Gallardo by program year, 2018 to 2025
Companies that paid Dr. Gallardo the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Guillermo G. Gallardo graduated from New York Medical College
Dr. Gallardo graduated from New York Medical College in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Guillermo G. Gallardo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Guillermo G. Gallardo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Guillermo G. Gallardo's NPI number?
Dr. Guillermo G. Gallardo's NPI number is 1134342439. It was assigned on April 11, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Guillermo G. Gallardo?
Dr. Guillermo G. Gallardo is an ophthalmologist in Brooklyn, New York. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Guillermo G. Gallardo practice?
Dr. Gallardo practices at 102 Graham Ave, Brooklyn, NY 11206. Dr. Gallardo's primary practice is Graham Eye Care in Brooklyn, New York. Dmand AI also links Dr. Gallardo to 4 group practices and clinics and 4 medical groups.
What is Dr. Guillermo G. Gallardo's office phone number?
The practice phone on file for Dr. Gallardo is (718) 406-0478.
What is Dr. Guillermo G. Gallardo's medical license number?
Dr. Gallardo holds New York license 197574, one of the licenses on file in 2 states.
Which states has Dr. Guillermo G. Gallardo been licensed in?
Dmand AI has state licenses on file for Dr. Gallardo in New York and Connecticut.
What medical group is Dr. Guillermo G. Gallardo part of?
Dr. Gallardo is linked to Essen Medical Associates. Dmand AI links Dr. Gallardo to 4 more medical groups.
Does Dr. Guillermo G. Gallardo accept Medicare?
Yes. CMS lists Dr. Gallardo as accepting Medicare assignment.
Where did Dr. Guillermo G. Gallardo go to medical school?
Dr. Gallardo graduated from New York Medical College in 1988.
What drugs does Dr. Guillermo G. Gallardo prescribe most?
In 2024 Medicare Part D data, Dr. Gallardo's most prescribed drugs by claims were Latanoprost.
Has Dr. Guillermo G. Gallardo received payments from drug or device companies?
CMS Open Payments shows $103 in general payments to Dr. Gallardo from 3 companies from 2018 to 2025. The largest total came from Shire North American Group Inc.
How long has Dr. Guillermo G. Gallardo been practicing?
Dr. Gallardo graduated from medical school in 1988, 38 years ago.
Selling to ophthalmology practices?
See ophthalmologists in New York 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