Dr. Agnieszka M. Janisiewicz, MD
- Part D claims, 2024
- 310
- Publications
- 10
- Hospital affiliations
- 1
- Industry payments
- $320
- Medical group
- 1
- Practice address
- 901 Nevin Ave, Richmond, CA 94801
- Practice phone
- Call (510) 307-1555
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Richmond Medical Center
Richmond, California
Find Dr. Janisiewicz'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. Agnieszka M. Janisiewicz is an otolaryngologist in Richmond, California
Dr. Janisiewicz practices at Richmond Medical Center in Richmond, California.
Dr. Janisiewicz's NPI, 1467615104, was assigned on July 2, 2008. Dr. Janisiewicz graduated from Harvard Medical School in 2008. Dr. Janisiewicz holds California license A108890.
- NPI
- 1467615104NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820225758
- NPI enumeration date
- July 2, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 307-1555
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Agnieszka M. Janisiewicz practices at Richmond Medical Center in Richmond, California
Dr. Janisiewicz's primary practice is Richmond Medical Center, at 901 Nevin Ave, Richmond, CA 94801 in Contra Costa County. The practice phone is (510) 307-1555.
- Richmond Medical Center901 Nevin Ave, Richmond, CA 94801 · Contra Costa CountyPhone(510) 307-1555
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Agnieszka M. Janisiewicz is affiliated with 2 sites of care and 1 medical group
Dr. Janisiewicz's primary practice is Richmond Medical Center in Richmond, California. Dr. Janisiewicz is also affiliated with San Leandro Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Agnieszka M. Janisiewicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Janisiewicz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Richmond Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Agnieszka M. Janisiewicz is one of 1,107 otolaryngologists in California
Otolaryngology is Dr. Janisiewicz's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Janisiewicz is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery. Dr. Janisiewicz is licensed in California.
Specialties and state licenses
- Otolaryngology, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic nasal allergies among the conditions Dr. Janisiewicz treats.
Otolaryngologists near Dr. Janisiewicz
Counts of otolaryngologists 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. Agnieszka M. Janisiewicz's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Dr. Janisiewicz's median patient age at 46, with 57% women.
Dr. Janisiewicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women57%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. Agnieszka M. Janisiewicz wrote 310 Medicare Part D claims in 2024
In 2024, Dr. Janisiewicz wrote 310 Medicare Part D claims for 112 patients. 92% of them were for generic drugs. CMS names the drug for 249 of them, across 9 drugs with 11 or more claims each, at $19,406 in total drug cost. In 2023, CMS named 222 claims across 7 drugs.
Dr. Janisiewicz's Part D claims by kind of drug, 2024
- Generic286 claims92%
- Brand-name24 claims8%
Dr. Janisiewicz'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. Janisiewicz's Part D claims, 2024
- Antibiotics19%58 of 310 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: 2222024: 24912%
Drugs named by CMS: 9 in 2024, 7 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. Agnieszka M. Janisiewicz takes part in Medicare
Dr. Janisiewicz 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. Agnieszka M. Janisiewicz has 10 publications on record
Dmand AI links 10 papers to Dr. Janisiewicz, published from 2014 to 2015. Dr. Janisiewicz has published most often in Allergy Rhinol (Providence). Dr. Janisiewicz's most frequent co-authors are Jivianne Kristine Tan Lee, MD, Rohit Garg, MD and David B. Keschner, MD.
Dr. Janisiewicz's most frequent co-authors
- Jivianne Kristine Tan Lee, MD3 shared papers
- Rohit Garg, MD2 shared papers
- David B. Keschner, MD2 shared papers
Recent publications by Dr. Janisiewicz
Otolaryngol Head Neck Surg
See who Dr. Janisiewicz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Janisiewicz works with, so you can find a warm path to the right otolaryngologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Agnieszka M. Janisiewicz received $320 in industry payments from 2019 to 2022
CMS Open Payments shows 6 general payments to Dr. Janisiewicz from 3 drug and device companies from 2019 to 2022. Food and beverage make up the largest share, 100% of the total. Intersect ENT, Inc. paid the most, $252.
General payments to Dr. Janisiewicz by program year, 2019 to 2022
Companies that paid Dr. Janisiewicz the most, 2019 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Agnieszka M. Janisiewicz has 1 award and honors on record
Dmand AI lists 1 award for Dr. Janisiewicz.
Awards and honors for Dr. Janisiewicz
- Undated
- AAO-HNS Fellow
Source: Dmand AI Professional Profile Data
Dr. Agnieszka M. Janisiewicz graduated from Harvard Medical School
Dr. Janisiewicz graduated from Harvard Medical School in 2008. Dr. Janisiewicz is a member of NHS.
- Medical school
- Board certified in otolaryngology
Source: Dmand AI Professional Profile Data
Dr. Agnieszka M. Janisiewicz accepts plans from 2 insurance carriers
Dr. Janisiewicz is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Janisiewicz accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Agnieszka M. Janisiewicz'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 DataDmand AI Org Hierarchy Data |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Agnieszka M. Janisiewicz
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. Agnieszka M. Janisiewicz's NPI number?
Dr. Agnieszka M. Janisiewicz's NPI number is 1467615104. It was assigned on July 2, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Agnieszka M. Janisiewicz?
Dr. Agnieszka M. Janisiewicz is an otolaryngologist in Richmond, California. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Agnieszka M. Janisiewicz practice?
Dr. Janisiewicz practices at 901 Nevin Ave, Richmond, CA 94801. Dr. Janisiewicz's primary practice is Richmond Medical Center in Richmond, California.
What is Dr. Agnieszka M. Janisiewicz's office phone number?
The practice phone on file for Dr. Janisiewicz is (510) 307-1555.
What is Dr. Agnieszka M. Janisiewicz's medical license number?
Dr. Janisiewicz holds California license A108890.
Which hospitals is Dr. Agnieszka M. Janisiewicz affiliated with?
Dr. Janisiewicz is affiliated with San Leandro Medical Center.
What medical group is Dr. Agnieszka M. Janisiewicz part of?
Dr. Janisiewicz is linked to The Permanente Medical Group, Inc.
Does Dr. Agnieszka M. Janisiewicz accept Medicare?
Yes. CMS lists Dr. Janisiewicz as accepting Medicare assignment.
Is Dr. Agnieszka M. Janisiewicz board certified?
Yes. Dr. Janisiewicz is board certified in otolaryngology by the American Board of Otolaryngology - Head and Neck Surgery.
Where did Dr. Agnieszka M. Janisiewicz go to medical school?
Dr. Janisiewicz graduated from Harvard Medical School in 2008.
Show 6 more questionsShow fewer questions
What drugs does Dr. Agnieszka M. Janisiewicz prescribe most?
In 2024 Medicare Part D data, Dr. Janisiewicz's most prescribed drugs by claims were Azelastine HCl, Ipratropium Bromide and Fluticasone Propionate.
Has Dr. Agnieszka M. Janisiewicz received payments from drug or device companies?
CMS Open Payments shows $320 in general payments to Dr. Janisiewicz from 3 companies from 2019 to 2022. The largest total came from Intersect ENT, Inc.
How long has Dr. Agnieszka M. Janisiewicz been practicing?
Dr. Janisiewicz graduated from medical school in 2008, 18 years ago.
Does Dr. Agnieszka M. Janisiewicz do research?
Dmand AI links 10 publications to Dr. Janisiewicz, published from 2014 to 2015.
Who does Dr. Agnieszka M. Janisiewicz publish with?
Dr. Janisiewicz's most frequent co-authors are Jivianne Kristine Tan Lee, MD (3 shared papers), Rohit Garg, MD (2 shared papers) and David B. Keschner, MD (2 shared papers).
What insurance does Dr. Agnieszka M. Janisiewicz accept?
Dr. Janisiewicz is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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