Dr. Sandra M. Herrmann, MD
- Medicare services, 2024
- 176
- Medicare patients, 2024
- 90
- Part D claims, 2024
- 52
- Publications
- 101
- Hospital affiliations
- 2
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Herrmann'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. Sandra M. Herrmann is a nephrologist in Rochester, Minnesota
Dr. Herrmann practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Dr. Herrmann's NPI, 1790964088, was assigned on November 2, 2007. Dr. Herrmann holds Minnesota license 51936.
- NPI
- 1790964088NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850447012
- NPI enumeration date
- November 2, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sandra M. Herrmann practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Dr. Herrmann's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
Dr. Sandra M. Herrmann is affiliated with 3 sites of care and 3 medical groups
Dr. Herrmann's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dr. Herrmann is also affiliated with Mayo Clinic Health System in Cannon Falls. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Herrmann to 2 more medical groups and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sandra M. Herrmann's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herrmann practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sandra M. Herrmann is one of 213 nephrologists in Minnesota
Nephrology is Dr. Herrmann's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Herrmann is licensed in Minnesota.
Specialties and state licenses
- Nephrology, MinnesotaPrimary
Nephrologists near Dr. Herrmann
Counts of nephrologists 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. Sandra M. Herrmann billed Medicare for 176 services in 2024
CMS data shows 176 Medicare services from Dr. Herrmann across 3 procedure codes in 2024, for 90 Medicare patients. Medicare paid $7,786 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Herrmann's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2222024: 13937%
- Tests and treatments
- 2023: 472024: 3721%
Dr. Herrmann compared with the Minnesota median for nephrologists, 2024
- Dr. Herrmann
- Minnesota median
- Medicare services
- 176vs 49364% below
- Medicare patients
- 90vs 18551% below
- Part D claims
- 13vs 37297% below
Medians across 200 nephrologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Herrmann'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. Herrmann?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Herrmann and other nephrologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sandra M. Herrmann treated 90 Medicare patients in 2024, average age 71
CMS counts 90 Medicare patients who saw Dr. Herrmann in 2024. The largest group is 65 to 74, with 45 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 13% are also on Medicaid. Their average risk score is 4.84, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Herrmann's median patient age at 70, with 47% women.
Dr. Herrmann's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Herrmann's Medicare patients by sex, 2024
- Women3640%
- Men5460%
Chronic conditions among Dr. Herrmann's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes49%
- Heart failure49%
- Ischemic heart disease44%
- Arthritis40%
- Atrial fibrillation37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Herrmann's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sandra M. Herrmann wrote 52 Medicare Part D claims in 2024
In 2024, Dr. Herrmann wrote 52 Medicare Part D claims for 23 patients. 96% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $65 in total drug cost. In 2021, CMS named 44 claims across 3 drugs.
Dr. Herrmann's Part D claims by kind of drug, 2024
- Generic50 claims96%
- Brand-name and other2 claims4%
Dr. Herrmann'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, 2021 to 2024
- 2021
- 2024
- Claims for drugs CMS names
- 2021: 442024: 1370%
Drugs named by CMS: 1 in 2024, 3 in 2021.
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. Sandra M. Herrmann offers telehealth to Medicare patients
Dr. Herrmann accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Herrmann as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sandra M. Herrmann has 101 publications on record
Dmand AI links 101 papers to Dr. Herrmann, published from 2011 to 2025. 2021 was the busiest year, with 11. The most frequent topics are Acute Kidney Injury, Kidney and Renal Artery Obstruction. Dr. Herrmann has published most often in Kidney Int Rep. Dr. Herrmann's most frequent co-authors are Nelson Leung, MD, Latonya J. Hickson, MD and Meghan E. Sise, MD.
Dr. Herrmann's papers by year, 2016 to 2025
Topics Dr. Herrmann writes about most
- Acute Kidney Injury
- Kidney
- Renal Artery Obstruction
- Glomerular Filtration Rate
- Immune Checkpoint Inhibitors
- Hypertension
- Nephritis, Interstitial
- Renal Circulation
Dr. Herrmann's most frequent co-authors
- Nelson Leung, MD15 shared papers
- Latonya J. Hickson, MD12 shared papers
- Meghan E. Sise, MD10 shared papers
Recent publications by Dr. Herrmann
See who Dr. Herrmann researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Herrmann works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Sandra M. Herrmann'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Sandra M. Herrmann
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. Sandra M. Herrmann's NPI number?
Dr. Sandra M. Herrmann's NPI number is 1790964088. It was assigned on November 2, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Sandra M. Herrmann?
Dr. Sandra M. Herrmann is a nephrologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Sandra M. Herrmann practice?
Dr. Herrmann practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Herrmann's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Dr. Herrmann to 2 medical groups and 1 hospice.
What is Dr. Sandra M. Herrmann's office phone number?
The practice phone on file for Dr. Herrmann is (507) 255-5123.
What is Dr. Sandra M. Herrmann's medical license number?
Dr. Herrmann holds Minnesota license 51936.
Which hospitals is Dr. Sandra M. Herrmann affiliated with?
Dr. Herrmann practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota. Dr. Herrmann is also affiliated with Mayo Clinic Health System in Cannon Falls.
What medical group is Dr. Sandra M. Herrmann part of?
Dr. Herrmann is linked to Mayo Clinic. Dmand AI links Dr. Herrmann to 2 more medical groups.
Does Dr. Sandra M. Herrmann accept Medicare?
Yes. CMS data shows Dr. Herrmann billed Medicare for 176 services in 2024, and Dr. Herrmann accepts Medicare assignment.
Does Dr. Sandra M. Herrmann offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Herrmann as offering telehealth services.
How many Medicare patients does Dr. Sandra M. Herrmann see?
CMS counts 90 Medicare patients who saw Dr. Herrmann in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Sandra M. Herrmann bill to Medicare?
In 2024, Dr. Herrmann's most billed Medicare services were hospital inpatient care (99231), dialysis (90935) and hospital inpatient care (99221).
What drugs does Dr. Sandra M. Herrmann prescribe most?
In 2024 Medicare Part D data, Dr. Herrmann's most prescribed drugs by claims were Prednisone.
How long has Dr. Sandra M. Herrmann been practicing?
Dr. Herrmann graduated from medical school in 1997, 29 years ago.
Does Dr. Sandra M. Herrmann do research?
Dmand AI links 101 publications to Dr. Herrmann, published from 2011 to 2025.
Who does Dr. Sandra M. Herrmann publish with?
Dr. Herrmann's most frequent co-authors are Nelson Leung, MD (15 shared papers), Latonya J. Hickson, MD (12 shared papers) and Meghan E. Sise, MD (10 shared papers).
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