Dr. Mark S. Segal, MD

  • Gainesville, FL
  • Nephrologist
NPI1477574085PAC ID5991839037
Medicare services, 2024
105
Medicare patients, 2024
50
Part D claims, 2024
987
Publications
151
Clinical trials
2
Practice address
1600 SW Archer Rd, Gainesville, FL 32610
Practice phone
Call (352) 265-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UF Health Shands Hospital

Hospital · Gainesville, Florida

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Dr. Mark S. Segal is a nephrologist in Gainesville, Florida

Dr. Segal practices at UF Health Shands Hospital in Gainesville, Florida, part of UF Health.

Dr. Segal's NPI, 1477574085, was assigned on July 21, 2006. Dr. Segal graduated from UT Southwestern Medical Center in 1992. Dr. Segal holds Florida license ME79739.

NPI and contact details
Medicare PAC ID
5991839037
NPI enumeration date
July 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(352) 265-8000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
60
Medical school graduation
1992

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Mark S. Segal practices at UF Health Shands Hospital in Gainesville, Florida

Dr. Segal's primary practice is UF Health Shands Hospital, at 1600 SW Archer Rd, Gainesville, FL 32610 in Alachua County. The practice phone is (352) 265-8000.

Source: Dmand AI Affiliation Data

Dr. Mark S. Segal is affiliated with 1 site of care and 1 medical group

Dr. Segal's primary practice is UF Health Shands Hospital in Gainesville, Florida, part of UF Health. The medical group on file is UF Health Physicians.

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Mark S. Segal's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Segal practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UF Health Shands HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Mark S. Segal is one of 917 nephrologists in Florida

Nephrology is Dr. Segal's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Segal is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Segal's licenses on file in 3 states: Florida, Massachusetts and Texas.

Specialties and state licenses

  • Nephrology, FloridaPrimaryLicense ME79739 · 1999 to 2027 · taxonomy 207RN0300X
  • Massachusetts license1995 to 2000
  • Texas license1993 to 1996

Clinical focus

Dmand AI lists chronic kidney disease and kidney disease among the conditions Dr. Segal treats.

Nephrologists near Dr. Segal

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. Mark S. Segal billed Medicare for 105 services in 2024

CMS data shows 105 Medicare services from Dr. Segal across 3 procedure codes in 2024, for 50 Medicare patients. Medicare paid $7,293 for them. Every service was in an office.

Medicare services, 2024105
Medicare patients50
Paid by Medicare$7,293
Procedure codes3

Dr. Segal's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 592024: 637%
Other services
2023: 02024: 42
Lab and pathology
2023: 442024: 0100%
Surgery
2023: 172024: 0100%

Dr. Segal compared with the Florida median for nephrologists, 2024

  • Dr. Segal
  • Florida median
Medicare services
105vs 1,49093% below
Medicare patients
50vs 38787% below
Part D claims
798vs 93415% below

Medians across 882 nephrologists in Florida with Dmand AI profiles that report each measure.

Dr. Segal'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.

See all procedures by Dr. Segal

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Segal and other nephrologists in Florida.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Mark S. Segal treated 50 Medicare patients in 2024, average age 62

CMS counts 50 Medicare patients who saw Dr. Segal in 2024. The largest group is under 65, with 22 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 40% are also on Medicaid. Their average risk score is 3.09, 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. Segal's median patient age at 61, with 72% women.

Medicare patients, 202450
Average age62
Average risk score3.09
Also on Medicaid40%

Dr. Segal's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Segal's Medicare patients by sex, 2024

  • Women3468%
  • Men1632%

Chronic conditions among Dr. Segal's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. High blood pressure75%
  3. High cholesterol64%
  4. Arthritis48%
  5. Ischemic heart disease38%
  6. Mood disorders36%
  7. Depression32%
  8. Heart failure30%

Share of Medicare patients with each condition. A patient can have several.

Dr. Segal's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women72%
  • Men28%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Mark S. Segal wrote 987 Medicare Part D claims in 2024

In 2024, Dr. Segal wrote 987 Medicare Part D claims for 74 patients. 92% of them were for generic drugs. CMS names the drug for 798 of them, across 21 drugs with 11 or more claims each, at $275,716 in total drug cost. In 2023, CMS named 675 claims across 20 drugs.

Part D claims, 2024987
Drugs named by CMS21
Total drug cost$275,716
Part D patients74

Dr. Segal's Part D claims by kind of drug, 2024

  • Generic910 claims92%
  • Brand-name77 claims8%

Dr. Segal'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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 6752024: 79818%

Drugs named by CMS: 21 in 2024, 20 in 2023.

See all prescribing by Dr. Segal

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. Mark S. Segal scored 48 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 48 out of 100 for Dr. Segal for performance year 2024, reported through an alternative payment model (APM). Dr. Segal accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Segal's MIPS scores, performance year 2024

  • 48of 100Final score
  • 38.5of 100Quality
  • 0of 100Promoting Interoperability
  • 40of 100Improvement Activities

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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Dr. Mark S. Segal has 151 publications on record

Dmand AI links 151 papers to Dr. Segal, published from 2003 to 2025. 2019 was the busiest year, with 7. The most frequent topics are Kidney Failure, Chronic, Cardiovascular Diseases and Hypertension. Dr. Segal has published most often in Am J Pathol. Dr. Segal's most frequent co-authors are Azra Bihorac, MD, Maria B. Grant, MD and Ashutosh Manojkumar Shukla, MD.

Papers151
Years published2003 to 2025

Dr. Segal's papers by year, 2016 to 2025

Topics Dr. Segal writes about most

  • Kidney Failure, Chronic
  • Cardiovascular Diseases
  • Hypertension
  • Blood Pressure
  • Renal Insufficiency, Chronic
  • Cells, Cultured
  • Renal Dialysis
  • Endothelium, Vascular

Dr. Segal's most frequent co-authors

Recent publications by Dr. Segal

See all 151 publications and co-authors

See who Dr. Segal researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Segal works with, so you can find a warm path to the right nephrologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Mark S. Segal has worked on 2 clinical trials

Dmand AI links Dr. Segal to 2 clinical trials. Conditions studied include Atherosclerosis, Hypertension and Anemia.

Clinical trials with Dr. Segal by phase

  1. NonePhase 1: no trials
  2. NonePhase 2: no trials
  3. 1Phase 3: 1 trial
  4. 1Phase 4: 1 trial

Conditions in Dr. Segal's trials

  • Atherosclerosis
  • Hypertension
  • Anemia
  • Heart Diseases

Recent clinical trials with Dr. Segal

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Mark S. Segal received $723 in industry payments from 2016 to 2025

CMS Open Payments shows 6 general payments to Dr. Segal from 5 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 49% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $362.

General payments to Dr. Segal by program year, 2016 to 2025

General payments to Dr. Segal by kind, 2016 to 2025

$723in total
  • Travel and lodging$35449%
  • Food and beverage$21930%
  • Speaker and faculty fees$15021%

Companies that paid Dr. Segal the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Segal

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Mark S. Segal has 6 awards and honors on record

Dmand AI lists 6 awards for Dr. Segal, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Segal

  1. 2013
    • CMS Stage 1 EHR
  2. 2012
    • Course Director of the Junior Honors Program
  3. 2010
    • Department of Medicine Excellence in Teaching
  4. 2007
    • College of Medicine Exemplary Teacher
  5. 2003
    • Dr. Bihorac was awarded the Trainee Research Award
  6. Undated
    • ASN Fellow

Source: Dmand AI Professional Profile Data

Dr. Mark S. Segal graduated from UT Southwestern Medical Center

Dr. Segal graduated from UT Southwestern Medical Center in 1992. Dr. Segal is a member of ASN.

  1. Medical schoolUT Southwestern Medical Center
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Mark S. Segal accepts plans from 7 insurance carriers

Dr. Segal is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Segal accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO3
  4. POS3
  5. EPO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Mark S. Segal's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Mark S. Segal

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. Mark S. Segal's NPI number?

Dr. Mark S. Segal's NPI number is 1477574085. It was assigned on July 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Mark S. Segal?

Dr. Mark S. Segal is a nephrologist in Gainesville, Florida. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Mark S. Segal practice?

Dr. Segal practices at 1600 SW Archer Rd, Gainesville, FL 32610. Dr. Segal's primary practice is UF Health Shands Hospital in Gainesville, Florida, part of UF Health.

What is Dr. Mark S. Segal's office phone number?

The practice phone on file for Dr. Segal is (352) 265-8000.

What is Dr. Mark S. Segal's medical license number?

Dr. Segal holds Florida license ME79739, one of the licenses on file in 3 states.

Which states has Dr. Mark S. Segal been licensed in?

Dmand AI has state licenses on file for Dr. Segal in Florida (1999 to 2027), Massachusetts (1995 to 2000) and Texas (1993 to 1996).

Which hospitals is Dr. Mark S. Segal affiliated with?

Dr. Segal practices at UF Health Shands Hospital in Gainesville, Florida.

What medical group is Dr. Mark S. Segal part of?

Dr. Segal is linked to UF Health Physicians.

Does Dr. Mark S. Segal accept Medicare?

Yes. CMS data shows Dr. Segal billed Medicare for 105 services in 2024, and Dr. Segal accepts Medicare assignment.

What is Dr. Mark S. Segal's MIPS score?

Dr. Segal's MIPS final score for performance year 2024 is 48 out of 100, reported through an alternative payment model (APM).

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Mark S. Segal see?

CMS counts 50 Medicare patients who saw Dr. Segal in 2024, with an average age of 62.

Is Dr. Mark S. Segal board certified?

Yes. Dr. Segal is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Mark S. Segal bill to Medicare?

In 2024, Dr. Segal's most billed Medicare services were office visit, established patient (99215), medicare service (G2211) and office visit, established patient (99214).

Where did Dr. Mark S. Segal go to medical school?

Dr. Segal graduated from UT Southwestern Medical Center in 1992.

What drugs does Dr. Mark S. Segal prescribe most?

In 2024 Medicare Part D data, Dr. Segal's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Mycophenolate Mofetil and Chlorthalidone.

Has Dr. Mark S. Segal received payments from drug or device companies?

CMS Open Payments shows $723 in general payments to Dr. Segal from 5 companies from 2016 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.

How long has Dr. Mark S. Segal been practicing?

Dr. Segal graduated from medical school in 1992, 34 years ago.

Does Dr. Mark S. Segal do research?

Dmand AI links 151 publications to Dr. Segal, published from 2003 to 2025. Dr. Segal has worked on 2 clinical trials.

Who does Dr. Mark S. Segal publish with?

Dr. Segal's most frequent co-authors are Azra Bihorac, MD (14 shared papers), Maria B. Grant, MD (10 shared papers) and Ashutosh Manojkumar Shukla, MD (9 shared papers).

What insurance does Dr. Mark S. Segal accept?

Dr. Segal is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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