Karen Lynne Koumjian, OD
- Medicare patients, 2024
- 88
- Part D claims, 2024
- 78
- Industry payments
- $900
- Affiliated sites
- 2
- State license
- 1
- Practice address
- 1440 Main Street, Waltham, MA 02451
- Practice phone
- Call (781) 891-9300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Surgisite Boston - Waltham
Surgery Center - Medicare-Certified · Waltham, Massachusetts
Find Karen Koumjian'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.
Karen Lynne Koumjian is an optometrist in Waltham, Massachusetts
Karen Koumjian practices at Surgisite Boston - Waltham in Waltham, Massachusetts.
Karen Koumjian's NPI, 1134345689, was assigned on April 17, 2007. Karen Koumjian graduated from New England College of Optometry in 1981. Karen Koumjian holds Massachusetts license 2921.
- NPI
- 1134345689NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537131578
- NPI enumeration date
- April 17, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (781) 891-9300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Lynne Koumjian practices at Surgisite Boston - Waltham in Waltham, Massachusetts
Karen Koumjian's primary practice is Surgisite Boston - Waltham, at 1440 Main Street, Waltham, MA 02451. The practice phone is (781) 891-9300.
- Surgisite Boston - Waltham1440 Main Street, Waltham, MA 02451Phone(781) 891-9300
Source: Dmand AI Affiliation Data
Karen Lynne Koumjian is affiliated with 2 sites of care
Karen Koumjian's primary practice is Surgisite Boston - Waltham in Waltham, Massachusetts. Dmand AI also links Karen Koumjian to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Lynne Koumjian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Koumjian practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Surgisite Boston - Waltham | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Lynne Koumjian is one of 1,098 optometrists in Massachusetts
Optometrist is Karen Koumjian's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Karen Koumjian is licensed in Massachusetts.
Specialties and state licenses
- Optometrist, MassachusettsPrimary
Optometrists near Karen Koumjian
Counts of optometrists 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
Karen Lynne Koumjian treated 88 Medicare patients in 2024, average age 75
CMS counts 88 Medicare patients who saw Karen Koumjian in 2024. The largest group is 65 to 74, with 40 patients. 65% of them have high cholesterol, and 59% have high blood pressure. 14% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Karen Koumjian's median patient age at 56, with 58% women.
Karen Koumjian's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Karen Koumjian's Medicare patients by sex, 2024
- Women5967%
- Men2933%
Chronic conditions among Karen Koumjian's Medicare patients, 2024
- High cholesterol65%
- High blood pressure59%
- Arthritis36%
- Anxiety32%
- Osteoporosis24%
- Mood disorders22%
- Ischemic heart disease20%
- Depression16%
Share of Medicare patients with each condition. A patient can have several.
Karen Koumjian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Karen Lynne Koumjian wrote 78 Medicare Part D claims in 2024
In 2024, Karen Koumjian wrote 78 Medicare Part D claims for 27 patients. 54% of them were for generic drugs.
Karen Koumjian's Part D claims by kind of drug, 2024
- Generic42 claims54%
- Brand-name36 claims46%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Karen Lynne Koumjian takes part in Medicare
Karen Koumjian accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Karen Lynne Koumjian received $900 in industry payments in 2025
CMS Open Payments shows 22 general payments to Karen Koumjian from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $345.
Companies that paid Karen Koumjian the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Karen Lynne Koumjian graduated from New England College of Optometry
Karen Koumjian graduated from New England College of Optometry in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Karen Lynne Koumjian'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| 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 (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) |
| 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 Karen Lynne Koumjian
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Lynne Koumjian's NPI number?
Karen Lynne Koumjian's NPI number is 1134345689. It was assigned on April 17, 2007, and it is active in the NPI Registry.
What does Karen Lynne Koumjian specialize in?
Karen Lynne Koumjian is an optometrist in Waltham, Massachusetts. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Karen Lynne Koumjian practice?
Karen Koumjian practices at 1440 Main Street, Waltham, MA 02451. Karen Koumjian's primary practice is Surgisite Boston - Waltham in Waltham, Massachusetts. Dmand AI also links Karen Koumjian to 1 physician office.
What is Karen Lynne Koumjian's office phone number?
The practice phone on file for Karen Koumjian is (781) 891-9300.
What is Karen Lynne Koumjian's medical license number?
Karen Koumjian holds Massachusetts license 2921.
Does Karen Lynne Koumjian accept Medicare?
Yes. CMS lists Karen Koumjian as accepting Medicare assignment.
How many Medicare patients does Karen Lynne Koumjian see?
CMS counts 88 Medicare patients who saw Karen Koumjian in 2024, with an average age of 75.
Where did Karen Lynne Koumjian go to medical school?
Karen Koumjian graduated from New England College of Optometry in 1981.
Has Karen Lynne Koumjian received payments from drug or device companies?
CMS Open Payments shows $900 in general payments to Karen Koumjian from 4 companies from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Karen Lynne Koumjian been practicing?
Karen Koumjian graduated from medical school in 1981, 45 years ago.
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