Dr. Mark P. Dacey, MD
- Medicare services, 2024
- 20,897
- Medicare patients, 2024
- 2,065
- Part D claims, 2024
- 432
- Hospital affiliations
- 2
- Industry payments
- $18,124
- Practice address
- 97 Libbey Industrial Pkwy, East Weymouth, MA 02189
- Practice phone
- Call (617) 367-4800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ophthalmic Consultants of Boston
East Weymouth, Massachusetts
Find Dr. Dacey'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. Mark P. Dacey is an ophthalmologist in East Weymouth, Massachusetts
Dr. Dacey practices at Ophthalmic Consultants of Boston in East Weymouth, Massachusetts.
Dr. Dacey's NPI, 1184613192, was assigned on October 21, 2005. Dr. Dacey graduated from JS Weill Medical College, Cornell University in 1990. Dr. Dacey holds Massachusetts license 79168.
- NPI
- 1184613192NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880626563
- NPI enumeration date
- October 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 367-4800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark P. Dacey practices at Ophthalmic Consultants of Boston in East Weymouth, Massachusetts
Dr. Dacey's primary practice is Ophthalmic Consultants of Boston, at 97 Libbey Industrial Pkwy, East Weymouth, MA 02189 in Norfolk County. The practice phone is (617) 367-4800.
- Ophthalmic Consultants of Boston97 Libbey Industrial Pkwy, East Weymouth, MA 02189 · Norfolk CountyPhone(617) 367-4800
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark P. Dacey is affiliated with 4 sites of care and 1 medical group
Dr. Dacey's primary practice is Ophthalmic Consultants of Boston in East Weymouth, Massachusetts. Dr. Dacey is also affiliated with South Shore Hospital. Dmand AI also links Dr. Dacey to 1 more hospital, 1 group practice or clinic and 1 medical group, 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. Mark P. Dacey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dacey practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ophthalmic Consultants of Boston | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark P. Dacey is one of 617 ophthalmologists in Massachusetts
Ophthalmology is Dr. Dacey's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Dacey is licensed in Massachusetts.
Specialties and state licenses
- Ophthalmology, MassachusettsPrimary
Ophthalmologists near Dr. Dacey
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. Mark P. Dacey billed Medicare for 20,897 services in 2024
CMS data shows 20,897 Medicare services from Dr. Dacey across 16 procedure codes in 2024, for 2,065 Medicare patients. Medicare paid $2,486,607 for them. Every service was in an office.
Dr. Dacey's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 5,0632024: 10,472107%
- Tests and treatments
- 2023: 6,8592024: 6,7062%
- Surgery
- 2023: 1,5042024: 1,66711%
- Other services
- 2023: 02024: 1,505
- Office and hospital visits
- 2023: 4672024: 468No change
- Imaging
- 2023: 802024: 791%
Dr. Dacey compared with the Massachusetts median for ophthalmologists, 2024
- Dr. Dacey
- Massachusetts median
- Medicare services
- 20,897vs 1,59813.1 times
- Medicare patients
- 2,065vs 5943.5 times
- Part D claims
- 383vs 54530% below
Medians across 612 ophthalmologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Dacey's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dacey and other ophthalmologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark P. Dacey treated 2,065 Medicare patients in 2024, average age 78
CMS counts 2,065 Medicare patients who saw Dr. Dacey in 2024. The largest group is 75 to 84, with 863 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dacey's median patient age at 75, with 60% women.
Dr. Dacey's Medicare patients by age, 2024
Dr. Dacey's Medicare patients by sex, 2024
- Women1,26561%
- Men80039%
Chronic conditions among Dr. Dacey's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes28%
- Chronic kidney disease26%
- Anxiety25%
- Ischemic heart disease25%
- Atrial fibrillation21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dacey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women60%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark P. Dacey wrote 432 Medicare Part D claims in 2024
In 2024, Dr. Dacey wrote 432 Medicare Part D claims for 123 patients. 61% of them were for generic drugs. CMS names the drug for 383 of them, across 6 drugs with 11 or more claims each, at $8,156 in total drug cost. In 2023, CMS named 281 claims across 5 drugs.
Dr. Dacey's Part D claims by kind of drug, 2024
- Generic262 claims61%
- Brand-name170 claims39%
Dr. Dacey'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: 2812024: 38336%
Drugs named by CMS: 6 in 2024, 5 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. Mark P. Dacey takes part in Medicare
Dr. Dacey 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)
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Dr. Mark P. Dacey received $18,124 in industry payments from 2016 to 2025
CMS Open Payments shows 42 general payments to Dr. Dacey from 7 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 82% of the total. ANI Pharmaceuticals, Inc. paid the most, $16,782.
General payments to Dr. Dacey by program year, 2016 to 2025
General payments to Dr. Dacey by kind, 2016 to 2025
- Honoraria$14,80082%
- Travel and lodging$1,73810%
- Food and beverage$9345%
- Consulting fees$5503%
- Education$1021%
Companies that paid Dr. Dacey the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark P. Dacey graduated from JS Weill Medical College, Cornell University
Dr. Dacey graduated from JS Weill Medical College, Cornell University in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark P. Dacey'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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. Mark P. Dacey
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. Mark P. Dacey's NPI number?
Dr. Mark P. Dacey's NPI number is 1184613192. It was assigned on October 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark P. Dacey?
Dr. Mark P. Dacey is an ophthalmologist in East Weymouth, Massachusetts. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Mark P. Dacey practice?
Dr. Dacey practices at 97 Libbey Industrial Pkwy, East Weymouth, MA 02189. Dr. Dacey's primary practice is Ophthalmic Consultants of Boston in East Weymouth, Massachusetts. Dmand AI also links Dr. Dacey to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. Mark P. Dacey's office phone number?
The practice phone on file for Dr. Dacey is (617) 367-4800.
What is Dr. Mark P. Dacey's medical license number?
Dr. Dacey holds Massachusetts license 79168.
Which hospitals is Dr. Mark P. Dacey affiliated with?
Dr. Dacey is affiliated with South Shore Hospital. Dmand AI links Dr. Dacey to 1 more hospital.
Does Dr. Mark P. Dacey accept Medicare?
Yes. CMS data shows Dr. Dacey billed Medicare for 20,897 services in 2024, and Dr. Dacey accepts Medicare assignment.
How many Medicare patients does Dr. Mark P. Dacey see?
CMS counts 2,065 Medicare patients who saw Dr. Dacey in 2024, with an average age of 78.
What services does Dr. Mark P. Dacey bill to Medicare?
In 2024, Dr. Dacey's most billed Medicare services were injected or infused drug (J2777), eye exam or test (92134) and eye exam or test (92014).
Where did Dr. Mark P. Dacey go to medical school?
Dr. Dacey graduated from JS Weill Medical College, Cornell University in 1990.
Show 3 more questionsShow fewer questions
What drugs does Dr. Mark P. Dacey prescribe most?
In 2024 Medicare Part D data, Dr. Dacey's most prescribed drugs by claims were Prednisolone Acetate, Ofloxacin and Atropine Sulfate.
Has Dr. Mark P. Dacey received payments from drug or device companies?
CMS Open Payments shows $18,124 in general payments to Dr. Dacey from 7 companies from 2016 to 2025. The largest total came from ANI Pharmaceuticals, Inc.
How long has Dr. Mark P. Dacey been practicing?
Dr. Dacey graduated from medical school in 1990, 36 years ago.
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