Karen Elaine Mayes, PA
- Medicare services, 2024
- 135
- Medicare patients, 2024
- 112
- Part D claims, 2024
- 1,103
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Practice address
- 4500 San Pablo Rd, Jacksonville, FL 32224
- Practice phone
- Call (904) 953-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Karen Mayes' professional email, personal email and mobile number
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Karen Elaine Mayes is a physician assistant in Jacksonville, Florida
Karen Mayes practices at Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.
Karen Mayes' NPI, 1437154887, was assigned on June 14, 2005. Karen Mayes holds Florida license PA9104558.
- NPI
- 1437154887NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739225657
- NPI enumeration date
- June 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (904) 953-2000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen Elaine Mayes practices at Mayo Clinic Hospital in Jacksonville, Florida
Karen Mayes' primary practice is Mayo Clinic Hospital, at 4500 San Pablo Rd, Jacksonville, FL 32224 in Duval County. The practice phone is (904) 953-2000.
- Mayo Clinic Hospital4500 San Pablo Rd, Jacksonville, FL 32224 · Duval CountyPhone(904) 953-2000
Source: Dmand AI Affiliation Data
Karen Elaine Mayes is affiliated with 1 site of care and 1 medical group
Karen Mayes' primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic. The medical group on file is Mayo Clinic Jacksonville.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Elaine Mayes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Mayes practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Elaine Mayes is one of 7,899 physician assistants in Florida
Physician assistant is Karen Mayes' primary specialty in the NPI Registry, under taxonomy code 363A00000X. Karen Mayes is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Karen Mayes is licensed in Florida.
Specialties and state licenses
- Physician assistant, FloridaPrimary
Clinical focus
Dmand AI lists chronic kidney disease and sleep apnea among the conditions Karen Mayes treats.
Physician assistants near Karen Mayes
Counts of physician assistants 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
Karen Elaine Mayes billed Medicare for 135 services in 2024
CMS data shows 135 Medicare services from Karen Mayes across 1 procedure code in 2024, all of them office visits, for 112 Medicare patients. Medicare paid $9,595 for them. Every service was in an office.
Karen Mayes compared with the Florida median for physician assistants, 2024
- Karen Mayes
- Florida median
- Medicare services
- 135vs 32158% below
- Medicare patients
- 112vs 13014% below
- Part D claims
- 889vs 3262.7 times
Medians across 5,430 physician assistants in Florida with Dmand AI profiles that report each measure.
Karen Mayes' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Karen Elaine Mayes treated 112 Medicare patients in 2024, average age 68
CMS counts 112 Medicare patients who saw Karen Mayes in 2024. The largest group is 65 to 74, with 49 patients. 75% of them have chronic kidney disease, and 75% have heart failure. 14% are also on Medicaid. Their average risk score is 2.80, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Karen Mayes' median patient age at 65, with 32% women.
Karen Mayes' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Karen Mayes' Medicare patients by sex, 2024
- Women2623%
- Men8677%
Chronic conditions among Karen Mayes' Medicare patients, 2024
- Chronic kidney disease75%
- Heart failure75%
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease57%
- Diabetes56%
- Atrial fibrillation46%
- Arthritis37%
Share of Medicare patients with each condition. A patient can have several.
Karen Mayes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women32%
- Men68%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Karen Elaine Mayes wrote 1,103 Medicare Part D claims in 2024
In 2024, Karen Mayes wrote 1,103 Medicare Part D claims for 238 patients. 84% of them were for generic drugs. CMS names the drug for 889 of them, across 31 drugs with 11 or more claims each, at $450,488 in total drug cost.
Karen Mayes' Part D claims by kind of drug, 2024
- Generic927 claims84%
- Brand-name and other176 claims16%
Karen Mayes' 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 Karen Mayes' Part D claims, 2024
- Antibiotics3%31 of 1,103 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
Karen Elaine Mayes scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Karen Mayes for performance year 2024, reported as part of a group. Karen Mayes accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Karen Mayes' MIPS scores, performance year 2024
- 84of 100Final score
- 74.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Karen Elaine Mayes received $129 in industry payments in 2025
CMS Open Payments shows 2 general payments to Karen Mayes from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $103.
Companies that paid Karen Mayes the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Karen Elaine Mayes is board certified in certified physician assistant
Karen Mayes is a member of ACC.
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Karen Elaine Mayes'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)Clinician Public Reporting: Overall MIPS Performance (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 Karen Elaine Mayes
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Elaine Mayes' NPI number?
Karen Elaine Mayes' NPI number is 1437154887. It was assigned on June 14, 2005, and it is active in the NPI Registry.
What does Karen Elaine Mayes specialize in?
Karen Elaine Mayes is a physician assistant in Jacksonville, Florida. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Karen Elaine Mayes practice?
Karen Mayes practices at 4500 San Pablo Rd, Jacksonville, FL 32224. Karen Mayes' primary practice is Mayo Clinic Hospital in Jacksonville, Florida, part of Mayo Clinic.
What is Karen Elaine Mayes' office phone number?
The practice phone on file for Karen Mayes is (904) 953-2000.
What is Karen Elaine Mayes' medical license number?
Karen Mayes holds Florida license PA9104558.
Which hospitals is Karen Elaine Mayes affiliated with?
Karen Mayes practices at Mayo Clinic Hospital in Jacksonville, Florida.
What medical group is Karen Elaine Mayes part of?
Karen Mayes is linked to Mayo Clinic Jacksonville.
Does Karen Elaine Mayes accept Medicare?
Yes. CMS data shows Karen Mayes billed Medicare for 135 services in 2024, and Karen Mayes accepts Medicare assignment.
What is Karen Elaine Mayes' MIPS score?
Karen Mayes' MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Karen Elaine Mayes see?
CMS counts 112 Medicare patients who saw Karen Mayes in 2024, with an average age of 68.
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Is Karen Elaine Mayes board certified?
Yes. Karen Mayes is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Karen Elaine Mayes bill to Medicare?
In 2024, Karen Mayes' most billed Medicare services were office visit, established patient (99214).
What drugs does Karen Elaine Mayes prescribe most?
In 2024 Medicare Part D data, Karen Mayes' most prescribed drugs by claims were Spironolactone, Entresto and Pantoprazole Sodium.
Has Karen Elaine Mayes received payments from drug or device companies?
CMS Open Payments shows $129 in general payments to Karen Mayes from 2 companies from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has Karen Elaine Mayes been practicing?
Karen Mayes graduated from medical school in 2008, 18 years ago.
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