Dr. Katherine Marie Niemeyer, MD
- Medicare services, 2023
- 66
- Part D claims, 2024
- 912
- Publications
- 4
- Industry payments
- $468
- Affiliated sites
- 6
- Practice address
- 2238 Geary Blvd, San Francisco, CA 94115
- Practice phone
- Call (415) 833-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Francisco Medical Center - Mammography
Mammography / Breast Imaging Center · San Francisco, California
Find Dr. Niemeyer's professional email, personal email and mobile number
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Dr. Katherine Marie Niemeyer is an ophthalmologist in San Francisco, California
Dr. Niemeyer practices at San Francisco Medical Center - Mammography in San Francisco, California.
Dr. Niemeyer's NPI, 1972007318, was assigned on March 21, 2018. Dr. Niemeyer graduated from Icahn School Of Medicine At Mount Sinai in 2017. Dr. Niemeyer holds California license A180010.
- NPI
- 1972007318NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890021034
- NPI enumeration date
- March 21, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (415) 833-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katherine Marie Niemeyer practices at San Francisco Medical Center - Mammography in San Francisco, California
Dr. Niemeyer's primary practice is San Francisco Medical Center - Mammography, at 2238 Geary Blvd, San Francisco, CA 94115. The practice phone is (415) 833-3700.
- San Francisco Medical Center - Mammography2238 Geary Blvd, San Francisco, CA 94115Phone(415) 833-3700
Source: Dmand AI Affiliation Data
Dr. Katherine Marie Niemeyer is affiliated with 6 sites of care and 5 medical groups
Dr. Niemeyer's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Niemeyer to 5 more group practices and clinics and 4 medical groups, each named with a free account. Dr. Niemeyer's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katherine Marie Niemeyer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Niemeyer practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Francisco Medical Center - Mammography | Available with a free account |
| +5 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Marie Niemeyer is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Niemeyer's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Niemeyer's licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- Massachusetts license
Clinical focus
Dmand AI lists cataract surgery with lens implant, inflammation of iris and scleritis among the conditions Dr. Niemeyer treats.
Ophthalmologists near Dr. Niemeyer
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. Katherine Marie Niemeyer billed Medicare for 66 services in 2023
CMS data shows 66 Medicare services from Dr. Niemeyer across 2 procedure codes in 2023. Medicare paid $4,809 for them. Every service was in an office.
Dr. Niemeyer's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Tests and treatments
- 2022: 282023: 3318%
- Office and hospital visits
- 2022: 292023: 3314%
Dr. Niemeyer compared with the California median for ophthalmologists, 2023
- Dr. Niemeyer
- California median
- Medicare services
- 66vs 1,07994% below
- Part D claims
- 808vs 61831% above
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Niemeyer's most billed Medicare procedure codes, 2023
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. Niemeyer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Niemeyer and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Marie Niemeyer's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Niemeyer's median patient age at 71, with 52% women.
Dr. Niemeyer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women52%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Katherine Marie Niemeyer wrote 912 Medicare Part D claims in 2024
In 2024, Dr. Niemeyer wrote 912 Medicare Part D claims for 298 patients. 76% of them were for generic drugs. CMS names the drug for 808 of them, across 18 drugs with 11 or more claims each, at $34,444 in total drug cost. In 2023, CMS named 278 claims across 11 drugs.
Dr. Niemeyer's Part D claims by kind of drug, 2024
- Generic694 claims76%
- Brand-name and other218 claims24%
Dr. Niemeyer'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.
Drug classes CMS tracks in Dr. Niemeyer's Part D claims, 2024
- Antibiotics2%17 of 912 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2782024: 808191%
Drugs named by CMS: 18 in 2024, 11 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. Katherine Marie Niemeyer takes part in Medicare
Dr. Niemeyer 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. Katherine Marie Niemeyer has 4 publications on record
Dmand AI links 4 papers to Dr. Niemeyer, published from 2017 to 2024. 2017 was the busiest year, with 2. The most frequent topics are Administration, Oral, Health Status and Visual Acuity. Dr. Niemeyer has published most often in Am J Ophthalmol. Dr. Niemeyer's most frequent co-authors are Nisha Acharya, MD, John Alexander Gonzales, MD and Thuy Doan, MD.
Dr. Niemeyer's papers by year, 2017 to 2024
Topics Dr. Niemeyer writes about most
- Administration, Oral
- Health Status
- Visual Acuity
Dr. Niemeyer's most frequent co-authors
- Nisha Acharya, MD3 shared papers
- John Alexander Gonzales, MD3 shared papers
- Thuy Doan, MD1 shared paper
Recent publications by Dr. Niemeyer
Health Informatics J
See who Dr. Niemeyer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Niemeyer 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. Katherine Marie Niemeyer received $468 in industry payments from 2023 to 2025
CMS Open Payments shows 5 general payments to Dr. Niemeyer from 4 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $243.
General payments to Dr. Niemeyer by program year, 2023 to 2025
Companies that paid Dr. Niemeyer the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Katherine Marie Niemeyer graduated from Icahn School Of Medicine At Mount Sinai
Dr. Niemeyer graduated from Icahn School Of Medicine At Mount Sinai in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Katherine Marie Niemeyer accepts plans from 4 insurance carriers
Dr. Niemeyer is in network with 4 carriers, including Kaiser Permanente, United Healthcare and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
- Kaiser Permanente
- United Healthcare
- CMS Medicare
- Elevance
Plan types Dr. Niemeyer accepts, by number of carriers
- HMO2
- Medicare2
- EPO1
- POS1
- PPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Katherine Marie Niemeyer'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)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) |
| 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 |
| 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. Katherine Marie Niemeyer
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. Katherine Marie Niemeyer's NPI number?
Dr. Katherine Marie Niemeyer's NPI number is 1972007318. It was assigned on March 21, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Marie Niemeyer?
Dr. Katherine Marie Niemeyer is an ophthalmologist in San Francisco, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Katherine Marie Niemeyer practice?
Dr. Niemeyer practices at 2238 Geary Blvd, San Francisco, CA 94115. Dr. Niemeyer's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. Dmand AI also links Dr. Niemeyer to 5 group practices and clinics and 4 medical groups.
What is Dr. Katherine Marie Niemeyer's office phone number?
The practice phone on file for Dr. Niemeyer is (415) 833-3700.
What is Dr. Katherine Marie Niemeyer's medical license number?
Dr. Niemeyer holds California license A180010, one of the licenses on file in 2 states.
Which states has Dr. Katherine Marie Niemeyer been licensed in?
Dmand AI has state licenses on file for Dr. Niemeyer in California (2022 to 2026) and Massachusetts (2019 to 2022).
What medical group is Dr. Katherine Marie Niemeyer part of?
Dr. Niemeyer is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Niemeyer to 4 more medical groups.
Does Dr. Katherine Marie Niemeyer accept Medicare?
Yes. CMS data shows Dr. Niemeyer billed Medicare for 66 services in 2023, and Dr. Niemeyer accepts Medicare assignment.
What services does Dr. Katherine Marie Niemeyer bill to Medicare?
In 2023, Dr. Niemeyer's most billed Medicare services were eye exam or test (92134) and office visit, established patient (99214).
Where did Dr. Katherine Marie Niemeyer go to medical school?
Dr. Niemeyer graduated from Icahn School Of Medicine At Mount Sinai in 2017.
Show 6 more questionsShow fewer questions
What drugs does Dr. Katherine Marie Niemeyer prescribe most?
In 2024 Medicare Part D data, Dr. Niemeyer's most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Dorzolamide-Timolol.
Has Dr. Katherine Marie Niemeyer received payments from drug or device companies?
CMS Open Payments shows $468 in general payments to Dr. Niemeyer from 4 companies from 2023 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Dr. Katherine Marie Niemeyer been practicing?
Dr. Niemeyer graduated from medical school in 2017, 9 years ago.
Does Dr. Katherine Marie Niemeyer do research?
Dmand AI links 4 publications to Dr. Niemeyer, published from 2017 to 2024.
Who does Dr. Katherine Marie Niemeyer publish with?
Dr. Niemeyer's most frequent co-authors are Nisha Acharya, MD (3 shared papers), John Alexander Gonzales, MD (3 shared papers) and Thuy Doan, MD (1 shared paper).
What insurance does Dr. Katherine Marie Niemeyer accept?
Dr. Niemeyer is in network with 4 carriers, including Kaiser Permanente, United Healthcare and CMS Medicare. HMO plans come from the most carriers, 2. Check the plan with the practice before a visit.
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