Ann Epidemiol
AnthropometryBlack or African AmericanDiabetes Mellitus, Type 2
Dr. Erynn B. Yang, MD
NPI1114135746PAC ID5799835468
- Medicare services, 2024
- 2,466
- Medicare patients, 2024
- 658
- Part D claims, 2024
- 4,438
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 111 Grossman Dr, Braintree, MA 02184
- Practice phone
- Call (617) 421-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Harvard Vanguard Medical Associates
Braintree, Massachusetts
Find Dr. Yang'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. Erynn B. Yang is an ophthalmologist in Braintree, Massachusetts
Dr. Yang practices at Harvard Vanguard Medical Associates in Braintree, Massachusetts.
Dr. Yang's NPI, 1114135746, was assigned on May 18, 2007. Dr. Yang graduated from Columbia University College of Physicians and Surgeons in 2005. Dr. Yang holds Iowa license R-7767.
NPI and contact details
- NPI
- 1114135746NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799835468
- NPI enumeration date
- May 18, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 421-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Erynn B. Yang practices at Harvard Vanguard Medical Associates in Braintree, Massachusetts
Dr. Yang's primary practice is Harvard Vanguard Medical Associates, at 111 Grossman Dr, Braintree, MA 02184 in Norfolk County. The practice phone is (617) 421-1000.
- Harvard Vanguard Medical Associates111 Grossman Dr, Braintree, MA 02184 · Norfolk CountyPhone(617) 421-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Erynn B. Yang is affiliated with 3 sites of care and 1 medical group
Dr. Yang's primary practice is Harvard Vanguard Medical Associates in Braintree, Massachusetts. Dr. Yang is also affiliated with Massachusetts Eye and Ear. The medical group on file is Atrius Health. Dmand AI also links Dr. Yang to 1 more group practice or clinic, named with a free account.
Harvard Vanguard Medical AssociatesPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Erynn B. Yang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harvard Vanguard Medical Associates | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Yang 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.
Dr. Erynn B. Yang is one of 617 ophthalmologists in Massachusetts
Ophthalmology is Dr. Yang's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Yang is licensed in Iowa.
Specialties and state licenses
- Ophthalmology, IowaPrimary
Ophthalmologists near Dr. Yang
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. Erynn B. Yang billed Medicare for 2,466 services in 2024
CMS data shows 2,466 Medicare services from Dr. Yang across 18 procedure codes in 2024, for 658 Medicare patients. Medicare paid $217,356 for them.
Medicare services, 20242,466
Medicare patients658
Paid by Medicare$217,356
Procedure codes18
Dr. Yang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,0122024: 1,11911%
- Office and hospital visits
- 2023: 9852024: 1,08210%
- Surgery
- 2023: 2172024: 1998%
- Other services
- 2023: 02024: 49
- Imaging
- 2023: 02024: 17
Where Dr. Yang's Medicare services took place, 2024
- In an office2,28493%
- In a facility1827%
Dr. Yang compared with the Massachusetts median for ophthalmologists, 2024
- Dr. Yang
- Massachusetts median
- Medicare services
- 2,466vs 1,59854% above
- Medicare patients
- 658vs 59411% above
- Part D claims
- 4,339vs 5458.0 times
Medians across 612 ophthalmologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Yang'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.
Need commercial claims for Dr. Yang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yang and other ophthalmologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Erynn B. Yang treated 658 Medicare patients in 2024, average age 75
CMS counts 658 Medicare patients who saw Dr. Yang in 2024. The largest group is 75 to 84, with 297 patients. 73% of them have high cholesterol, and 63% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Yang's median patient age at 74, with 55% women.
Medicare patients, 2024658
Average age75
Average risk score1.09
Also on Medicaid9%
Dr. Yang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Yang's Medicare patients by sex, 2024
- Women33851%
- Men32049%
Chronic conditions among Dr. Yang's Medicare patients, 2024
- High cholesterol73%
- High blood pressure63%
- Arthritis32%
- Diabetes32%
- Chronic kidney disease23%
- Ischemic heart disease22%
- Mood disorders22%
- Depression20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Yang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Erynn B. Yang wrote 4,438 Medicare Part D claims in 2024
In 2024, Dr. Yang wrote 4,438 Medicare Part D claims for 746 patients. 71% of them were for generic drugs. CMS names the drug for 4,339 of them, across 23 drugs with 11 or more claims each, at $302,701 in total drug cost. In 2023, CMS named 4,540 claims across 22 drugs.
Part D claims, 20244,438
Drugs named by CMS23
Total drug cost$302,701
Part D patients746
Dr. Yang's Part D claims by kind of drug, 2024
- Generic3,139 claims71%
- Brand-name1,299 claims29%
Dr. Yang'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: 4,5402024: 4,3394%
Drugs named by CMS: 23 in 2024, 22 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
Dr. Erynn B. Yang ranks in the 84th percentile for cataract surgery in Medicare
Dr. Yang accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 198 procedures of cataract surgery by Dr. Yang, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Yang ranks in Medicare procedure volume
- Cataract surgery
- 84th percentile198 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Find ophthalmologists like Dr. Yang 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.
Dr. Erynn B. Yang has 1 publication on record
Dmand AI links 1 paper to Dr. Yang. Dr. Yang's most frequent co-author is Johanna Margaret Seddon, MD.
Papers1
Dr. Yang's most frequent co-authors
Recent publications by Dr. Yang
See who Dr. Yang researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yang works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Erynn B. Yang received $1,048 in industry payments from 2016 to 2024
CMS Open Payments shows 11 general payments to Dr. Yang from 6 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 92% of the total. Alcon Laboratories Inc paid the most, $299.
General payments to Dr. Yang by program year, 2016 to 2024
General payments to Dr. Yang by kind, 2016 to 2024
$1Kin total
- Food and beverage$95992%
- Travel and lodging$898%
Companies that paid Dr. Yang the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Erynn B. Yang graduated from Columbia University College of Physicians and Surgeons
Dr. Yang graduated from Columbia University College of Physicians and Surgeons in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Erynn B. Yang'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Erynn B. Yang
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. Erynn B. Yang's NPI number?
Dr. Erynn B. Yang's NPI number is 1114135746. It was assigned on May 18, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Erynn B. Yang?
Dr. Erynn B. Yang is an ophthalmologist in Braintree, Massachusetts. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Erynn B. Yang practice?
Dr. Yang practices at 111 Grossman Dr, Braintree, MA 02184. Dr. Yang's primary practice is Harvard Vanguard Medical Associates in Braintree, Massachusetts. Dmand AI also links Dr. Yang to 1 group practice or clinic.
What is Dr. Erynn B. Yang's office phone number?
The practice phone on file for Dr. Yang is (617) 421-1000.
What is Dr. Erynn B. Yang's medical license number?
Dr. Yang holds Iowa license R-7767.
Which hospitals is Dr. Erynn B. Yang affiliated with?
Dr. Yang is affiliated with Massachusetts Eye and Ear.
What medical group is Dr. Erynn B. Yang part of?
Dr. Yang is linked to Atrius Health.
Does Dr. Erynn B. Yang accept Medicare?
Yes. CMS data shows Dr. Yang billed Medicare for 2,466 services in 2024, and Dr. Yang accepts Medicare assignment.
How many Medicare patients does Dr. Erynn B. Yang see?
CMS counts 658 Medicare patients who saw Dr. Yang in 2024, with an average age of 75.
What services does Dr. Erynn B. Yang bill to Medicare?
In 2024, Dr. Yang's most billed Medicare services were office visit, established patient (99214), eye exam or test (92133) and eye exam or test (92083).
Show 6 more questionsShow fewer questions
Where did Dr. Erynn B. Yang go to medical school?
Dr. Yang graduated from Columbia University College of Physicians and Surgeons in 2005.
What drugs does Dr. Erynn B. Yang prescribe most?
In 2024 Medicare Part D data, Dr. Yang's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Prednisolone Acetate.
Has Dr. Erynn B. Yang received payments from drug or device companies?
CMS Open Payments shows $1,048 in general payments to Dr. Yang from 6 companies from 2016 to 2024. The largest total came from Alcon Laboratories Inc.
How long has Dr. Erynn B. Yang been practicing?
Dr. Yang graduated from medical school in 2005, 21 years ago.
Does Dr. Erynn B. Yang do research?
Dmand AI links 1 publication to Dr. Yang.
Who does Dr. Erynn B. Yang publish with?
Dr. Yang's most frequent co-authors are Johanna Margaret Seddon, MD (1 shared paper).
Selling to ophthalmology practices?
See ophthalmologists 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