Dr. Sara Kay Herrera, MD
- Medicare services, 2024
- 123
- Medicare patients, 2024
- 126
- Part D claims, 2024
- 52
- Hospital affiliations
- 3
- Industry payments
- $8,758
- Practice address
- 850 W Baraga Ave, Marquette, MI 49855
- Practice phone
- Call (906) 228-9440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Herrera's professional email, personal email and mobile number
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Dr. Sara Kay Herrera is a general surgeon in Marquette, Michigan
Dr. Herrera practices at UP Health System - Marquette in Marquette, Michigan, part of Lifepoint Health.
Dr. Herrera's NPI, 1235412917, was assigned on September 20, 2011. Dr. Herrera graduated from Medical College of Wisconsin in 2011. Dr. Herrera holds Michigan license 4301099548.
- NPI
- 1235412917NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264723345
- NPI enumeration date
- September 20, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (906) 228-9440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sara Kay Herrera practices at UP Health System - Marquette in Marquette, Michigan
Dr. Herrera's primary practice is UP Health System - Marquette, at 850 W Baraga Ave, Marquette, MI 49855 in Marquette County. The practice phone is (906) 228-9440.
- UP Health System - Marquette850 W Baraga Ave, Marquette, MI 49855 · Marquette CountyPhone(906) 228-9440
Source: Dmand AI Affiliation Data
Dr. Sara Kay Herrera is affiliated with 3 sites of care and 3 medical groups
Dr. Herrera's primary practice is UP Health System - Marquette in Marquette, Michigan, part of Lifepoint Health. Dr. Herrera is also affiliated with University of Iowa Health Care Medical Center. The medical group on file is UP Medical Group, Marquette | Family Medicine. Dmand AI also links Dr. Herrera to 1 more hospital and 2 medical groups, 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. Sara Kay Herrera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Herrera practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UP Health System - Marquette | 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. Sara Kay Herrera is one of 1,095 general surgeons in Michigan
Surgery is Dr. Herrera's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Herrera is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Herrera
Counts of general surgeons 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. Sara Kay Herrera billed Medicare for 123 services in 2024
CMS data shows 123 Medicare services from Dr. Herrera across 5 procedure codes in 2024, for 126 Medicare patients. Medicare paid $10,188 for them.
Dr. Herrera's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 942024: 12331%
- Surgery
- 2023: 162024: 0100%
Where Dr. Herrera's Medicare services took place, 2024
- In an office1210%
- In a facility11190%
Dr. Herrera compared with the Michigan median for general surgeons, 2024
- Dr. Herrera
- Michigan median
- Medicare services
- 123vs 126Close to median
- Medicare patients
- 126vs 10718% above
- Part D claims
- 19vs 3037% below
Medians across 1,046 general surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Herrera'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Herrera and other general surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sara Kay Herrera treated 126 Medicare patients in 2024, average age 75
CMS counts 126 Medicare patients who saw Dr. Herrera in 2024. The largest group is 65 to 74, with 55 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.68, 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. Herrera's median patient age at 69, with 54% women.
Dr. Herrera's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Herrera's Medicare patients by sex, 2024
- Women6148%
- Men6552%
Chronic conditions among Dr. Herrera's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Ischemic heart disease44%
- Heart failure40%
- Atrial fibrillation37%
- Diabetes33%
- COPD32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Herrera's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sara Kay Herrera wrote 52 Medicare Part D claims in 2024
In 2024, Dr. Herrera wrote 52 Medicare Part D claims for 29 patients. 100% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $66 in total drug cost. In 2023, CMS named 32 claims across 1 drug.
Dr. Herrera'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. Herrera's Part D claims, 2024
- Opioids54%28 of 52 claims
- Antibiotics31%16 of 52 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: 322024: 1941%
Drugs named by CMS: 1 in 2024, 1 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. Sara Kay Herrera takes part in Medicare
Dr. Herrera accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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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Dr. Sara Kay Herrera received $8,758 in industry payments from 2021 to 2025
CMS Open Payments shows 24 general payments to Dr. Herrera from 8 drug and device companies from 2021 to 2025. Education make up the largest share, 69% of the total. Intuitive Surgical, Inc. paid the most, $6,924.
General payments to Dr. Herrera by program year, 2021 to 2025
General payments to Dr. Herrera by kind, 2021 to 2025
- Education$6,00069%
- Travel and lodging$2,12124%
- Food and beverage$6377%
Companies that paid Dr. Herrera the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sara Kay Herrera graduated from Medical College of Wisconsin
Dr. Herrera graduated from Medical College of Wisconsin in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sara Kay Herrera'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)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 Dr. Sara Kay Herrera
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. Sara Kay Herrera's NPI number?
Dr. Sara Kay Herrera's NPI number is 1235412917. It was assigned on September 20, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Sara Kay Herrera?
Dr. Sara Kay Herrera is a general surgeon in Marquette, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Sara Kay Herrera practice?
Dr. Herrera practices at 850 W Baraga Ave, Marquette, MI 49855. Dr. Herrera's primary practice is UP Health System - Marquette in Marquette, Michigan, part of Lifepoint Health. Dmand AI also links Dr. Herrera to 1 hospital and 2 medical groups.
What is Dr. Sara Kay Herrera's office phone number?
The practice phone on file for Dr. Herrera is (906) 228-9440.
What is Dr. Sara Kay Herrera's medical license number?
Dr. Herrera holds Michigan license 4301099548.
Which hospitals is Dr. Sara Kay Herrera affiliated with?
Dr. Herrera practices at UP Health System - Marquette in Marquette, Michigan. Dr. Herrera is also affiliated with University of Iowa Health Care Medical Center. Dmand AI links Dr. Herrera to 1 more hospital.
What medical group is Dr. Sara Kay Herrera part of?
Dr. Herrera is linked to UP Medical Group, Marquette | Family Medicine. Dmand AI links Dr. Herrera to 2 more medical groups.
Does Dr. Sara Kay Herrera accept Medicare?
Yes. CMS data shows Dr. Herrera billed Medicare for 123 services in 2024, and Dr. Herrera accepts Medicare assignment.
How many Medicare patients does Dr. Sara Kay Herrera see?
CMS counts 126 Medicare patients who saw Dr. Herrera in 2024, with an average age of 75.
What services does Dr. Sara Kay Herrera bill to Medicare?
In 2024, Dr. Herrera's most billed Medicare services were hospital inpatient care (99231), hospital inpatient care (99221) and critical care (99291).
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Where did Dr. Sara Kay Herrera go to medical school?
Dr. Herrera graduated from Medical College of Wisconsin in 2011.
What drugs does Dr. Sara Kay Herrera prescribe most?
In 2024 Medicare Part D data, Dr. Herrera's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Sara Kay Herrera received payments from drug or device companies?
CMS Open Payments shows $8,758 in general payments to Dr. Herrera from 8 companies from 2021 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Sara Kay Herrera been practicing?
Dr. Herrera graduated from medical school in 2011, 15 years ago.
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