Dr. Frederick Charles Armbruster, MD
- Medicare services, 2022
- 2,289
- Part D claims, 2023
- 24
- Hospital affiliations
- 1
- Industry payments
- $82
- Medical group
- 1
- Practice address
- 15 Hospital Drive, York, ME 03909
- Practice phone
- Call (207) 351-2478
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Armbruster's professional email, personal email and mobile number
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Dr. Frederick Charles Armbruster is an ophthalmologist in York, Maine
Dr. Armbruster practices at York Hospital in York, Maine, part of MaineHealth.
Dr. Armbruster's NPI, 1699746362, was assigned on January 30, 2006. Dr. Armbruster graduated from University Of Michigan Medical School in 1979. Dr. Armbruster's Maine license number on file is 011524.
- NPI
- 1699746362NPI Registry (opens in a new tab)
- NPI enumeration date
- January 30, 2006
- NPI status
- Active
- Practice phone
- (207) 351-2478
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Frederick Charles Armbruster practices at York Hospital in York, Maine
Dr. Armbruster's primary practice is York Hospital, at 15 Hospital Drive, York, ME 03909 in York County. The practice phone is (207) 351-2478.
- York Hospital15 Hospital Drive, York, ME 03909 · York CountyPhone(207) 351-2478
Source: Dmand AI Affiliation Data
Dr. Frederick Charles Armbruster is affiliated with 1 site of care and 1 medical group
Dr. Armbruster's primary practice is York Hospital in York, Maine, part of MaineHealth. The medical group on file is York Hospital. Dr. Armbruster's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Frederick Charles Armbruster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Armbruster practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| York Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Frederick Charles Armbruster is one of 80 ophthalmologists in Maine
Ophthalmology is Dr. Armbruster's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Armbruster is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Armbruster's licenses on file in 3 states: Maine, New Hampshire and Massachusetts.
Specialties and state licenses
- Ophthalmology, MainePrimary
- New Hampshire license
- Massachusetts license
Ophthalmologists near Dr. Armbruster
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. Frederick Charles Armbruster billed Medicare for 2,289 services in 2022
CMS data shows 2,289 Medicare services from Dr. Armbruster across 8 procedure codes in 2022. Medicare paid $394,963 for them. Every service was in an office.
Dr. Armbruster's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Tests and treatments
- 2021: 1,8482022: 1,39724%
- Drugs given in the office
- 2021: 6072022: 52613%
- Surgery
- 2021: 4232022: 34518%
- Office and hospital visits
- 2021: 342022: 2138%
Dr. Armbruster compared with the Maine median for ophthalmologists, 2022
- Dr. Armbruster
- Maine median
- Medicare services
- 2,289vs 1,0602.2 times
- Part D claims
- 24vs 63296% below
Medians across 91 ophthalmologists in Maine with Dmand AI profiles that report each measure.
Dr. Armbruster's most billed Medicare procedure codes, 2022
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. Armbruster?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Armbruster and other ophthalmologists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Frederick Charles Armbruster's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. Armbruster's median patient age at 76, with 67% women.
Dr. Armbruster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Frederick Charles Armbruster wrote 24 Medicare Part D claims in 2023
In 2023, Dr. Armbruster wrote 24 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $692 in total drug cost. In 2022, CMS named 290 claims across 11 drugs.
Dr. Armbruster's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 2902023: 2492%
Drugs named by CMS: 1 in 2023, 11 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Frederick Charles Armbruster received $82 in industry payments from 2017 to 2020
CMS Open Payments shows 5 general payments to Dr. Armbruster from 4 drug and device companies from 2017 to 2020. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $34.
General payments to Dr. Armbruster by program year, 2017 to 2020
Companies that paid Dr. Armbruster the most, 2017 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Frederick Charles Armbruster graduated from University Of Michigan Medical School
Dr. Armbruster graduated from University Of Michigan Medical School in 1979.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Frederick Charles Armbruster accepts plans from 3 insurance carriers
Dr. Armbruster is in network with 3 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
Plan types Dr. Armbruster accepts, by number of carriers
- Medicare3
- PPO3
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Frederick Charles Armbruster'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 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Frederick Charles Armbruster
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. Frederick Charles Armbruster's NPI number?
Dr. Frederick Charles Armbruster's NPI number is 1699746362. It was assigned on January 30, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Frederick Charles Armbruster?
Dr. Frederick Charles Armbruster is an ophthalmologist in York, Maine. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Frederick Charles Armbruster practice?
Dr. Armbruster practices at 15 Hospital Drive, York, ME 03909. Dr. Armbruster's primary practice is York Hospital in York, Maine, part of MaineHealth.
What is Dr. Frederick Charles Armbruster's office phone number?
The practice phone on file for Dr. Armbruster is (207) 351-2478.
What is Dr. Frederick Charles Armbruster's medical license number?
Dr. Armbruster's Maine license number on file is 011524, one of the licenses on file in 3 states.
Which states has Dr. Frederick Charles Armbruster been licensed in?
Dmand AI has state licenses on file for Dr. Armbruster in Maine (1983 to 2023), New Hampshire (1985 to 2021) and Massachusetts (1980 to 2011).
Which hospitals is Dr. Frederick Charles Armbruster affiliated with?
Dr. Armbruster practices at York Hospital in York, Maine.
What medical group is Dr. Frederick Charles Armbruster part of?
Dr. Armbruster is linked to York Hospital.
Does Dr. Frederick Charles Armbruster accept Medicare?
Yes. CMS data shows Dr. Armbruster billed Medicare for 2,289 services in 2022.
Is Dr. Frederick Charles Armbruster board certified?
Yes. Dr. Armbruster is board certified in ophthalmology by the American Board of Ophthalmology.
Show 6 more questionsShow fewer questions
What services does Dr. Frederick Charles Armbruster bill to Medicare?
In 2022, Dr. Armbruster's most billed Medicare services were eye exam or test (92134), eye exam or test (92012) and injected or infused drug (J0178).
Where did Dr. Frederick Charles Armbruster go to medical school?
Dr. Armbruster graduated from University Of Michigan Medical School in 1979.
What drugs does Dr. Frederick Charles Armbruster prescribe most?
In 2023 Medicare Part D data, Dr. Armbruster's most prescribed drugs by claims were Latanoprost.
Has Dr. Frederick Charles Armbruster received payments from drug or device companies?
CMS Open Payments shows $82 in general payments to Dr. Armbruster from 4 companies from 2017 to 2020. The largest total came from Allergan Inc.
How long has Dr. Frederick Charles Armbruster been practicing?
Dr. Armbruster graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Frederick Charles Armbruster accept?
Dr. Armbruster is in network with 3 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 3. Check the plan with the practice before a visit.
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