Dr. Joanna Marie Kemp, MD

  • Saint Louis, MO
  • Neurosurgeon
NPI1326277526PAC ID4284936600
Medicare services, 2024
24
Medicare patients, 2024
56
Part D claims, 2024
50
Publications
26
Clinical trials
1
Practice address
1201 S Grand Blvd, Saint Louis, MO 63104
Practice phone
Call (314) 257-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

SSM Health Saint Louis University Hospital

Hospital · Saint Louis, Missouri

See all 6 affiliations

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Dr. Joanna Marie Kemp is a neurosurgeon in Saint Louis, Missouri

Dr. Kemp practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care.

Dr. Kemp's NPI, 1326277526, was assigned on July 9, 2009. Dr. Kemp graduated from Saint Louis University School Of Medicine in 2009. Dr. Kemp holds Missouri license 2017011917.

NPI and contact details
Medicare PAC ID
4284936600
NPI enumeration date
July 9, 2009
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(314) 257-8000
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Female
Estimated age
43
Medical school graduation
2009

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

Dr. Joanna Marie Kemp practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri

Dr. Kemp's primary practice is SSM Health Saint Louis University Hospital, at 1201 S Grand Blvd, Saint Louis, MO 63104 in St. Louis City. The practice phone is (314) 257-8000.

Source: Dmand AI Affiliation Data

Dr. Joanna Marie Kemp is affiliated with 5 sites of care and 1 medical group

Dr. Kemp's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dr. Kemp is also affiliated with SSM Health St. Mary's Hospital - St. Louis. The medical group on file is SLUCare Physician Group. Dmand AI also links Dr. Kemp to 2 more hospitals and 1 behavioral health center, each named with a free account.

See all 6 affiliations for Dr. Kemp

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

Dmand AI tracks the EHR system at Dr. Joanna Marie Kemp's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kemp practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
SSM Health Saint Louis University HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Joanna Marie Kemp is one of 173 neurosurgeons in Missouri

Neurological surgery is Dr. Kemp's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Kemp is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Kemp's licenses on file in 3 states: Missouri, Illinois and California.

Specialties and state licenses

  • Neurological surgery, MissouriPrimaryLicense 2017011917 · 2017 to 2026 · taxonomy 207T00000X
  • Illinois license2021 to 2026
  • California license2016 to 2017

Clinical focus

Dmand AI lists back and neck pain treatment without fusion, craniotomy and spinal fusion among the conditions Dr. Kemp treats.

Neurosurgeons near Dr. Kemp

Counts of neurosurgeons 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. Joanna Marie Kemp billed Medicare for 24 services in 2024

CMS data shows 24 Medicare services from Dr. Kemp across 1 procedure code in 2024, for 56 Medicare patients. Medicare paid $2,405 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202424
Medicare patients56
Paid by Medicare$2,405
Procedure codes1

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

  • 2023
  • 2024
Office and hospital visits
2023: 482024: 2450%

Dr. Kemp compared with the Missouri median for neurosurgeons, 2024

  • Dr. Kemp
  • Missouri median
Medicare services
24vs 21389% below
Medicare patients
56vs 16265% below
Part D claims
11vs 9288% below

Medians across 162 neurosurgeons in Missouri with Dmand AI profiles that report each measure.

Dr. Kemp'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. Kemp

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kemp and other neurosurgeons in Missouri.

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

Dr. Joanna Marie Kemp treated 56 Medicare patients in 2024, average age 69

CMS counts 56 Medicare patients who saw Dr. Kemp in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 36% are also on Medicaid. Their average risk score is 1.75, 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. Kemp's median patient age at 52, with 44% women.

Medicare patients, 202456
Average age69
Average risk score1.75
Also on Medicaid36%

Dr. Kemp's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Kemp's Medicare patients by sex, 2024

  • Women2952%
  • Men2748%

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

  1. High blood pressure75%
  2. High cholesterol73%
  3. Stroke or TIA61%
  4. Arthritis54%
  5. Mood disorders50%
  6. Anxiety46%
  7. Depression46%
  8. Diabetes38%

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

Dr. Kemp's patients across all payers

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

Patient panel by age, all payers

Median age 52

Patient panel by sex, all payers

  • Women44%
  • Men56%

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

Dr. Joanna Marie Kemp wrote 50 Medicare Part D claims in 2024

In 2024, Dr. Kemp wrote 50 Medicare Part D claims for 16 patients. 100% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $192 in total drug cost. In 2022, CMS named 11 claims across 1 drug.

Part D claims, 202450
Drugs named by CMS1
Total drug cost$192
Part D patients16

Dr. Kemp's most prescribed drugs by claims, 2023

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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 112023: 11No change

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Kemp

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. Joanna Marie Kemp scored 85 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Kemp for performance year 2024, reported as part of a group. Dr. Kemp accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Kemp's MIPS scores, performance year 2024

  • 85of 100Final score
  • 68.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 72of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Joanna Marie Kemp has 26 publications on record

Dmand AI links 26 papers to Dr. Kemp, published from 2010 to 2023. 2015 was the busiest year, with 3. The most frequent topics are Evidence-Based Medicine, Hydrocephalus and Neuronavigation. Dr. Kemp has published most often in J Neurosurg Pediatr. Dr. Kemp's most frequent co-authors are Jeroen Raymond Coppens, MD, Philippe Joseph Arthur Mercier, MD, PhD and Georgios Alexopoulos, MD.

Papers26
Years published2010 to 2023

Dr. Kemp's papers by year, 2014 to 2023

Topics Dr. Kemp writes about most

  • Evidence-Based Medicine
  • Hydrocephalus
  • Neuronavigation
  • Adjuvants, Immunologic
  • Antigens
  • Cerebrospinal Fluid Shunts
  • Lymph
  • Sheep

Dr. Kemp's most frequent co-authors

Recent publications by Dr. Kemp

See all 26 publications and co-authors

See who Dr. Kemp researches with

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

How network discovery works

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

Dr. Joanna Marie Kemp has worked on 1 clinical trial

Dmand AI links Dr. Kemp to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Muscular Dystrophy, Duchenne and Muscular Dystrophies.

Conditions in Dr. Kemp's trials

  • Muscular Dystrophy, Duchenne
  • Muscular Dystrophies

Recent clinical trials with Dr. Kemp

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

Dr. Joanna Marie Kemp received $10,342 in industry payments from 2016 to 2025

CMS Open Payments shows 83 general payments to Dr. Kemp from 14 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 65% of the total. Medtronic, Inc. paid the most, $4,325.

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

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

$10.3Kin total
  • Travel and lodging$6,68165%
  • Food and beverage$3,62235%
  • Entertainment$390%

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

Share is of all general payments to this clinician.

See all payments to Dr. Kemp

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

Dr. Joanna Marie Kemp graduated from Saint Louis University School Of Medicine

Dr. Kemp graduated from Saint Louis University School Of Medicine in 2009. Dr. Kemp is a member of AANS and CNS.

  1. Medical schoolSaint Louis University School Of Medicine
  2. Board certified in neurological surgeryAmerican Board of Neurological Surgery
  3. Board certified in pediatric neurological surgeryAmerican Board of Pediatric Neurological Surgery

Source: Dmand AI Professional Profile Data

Dr. Joanna Marie Kemp accepts plans from 19 insurance carriers

Dr. Kemp is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Humana
  • +11 more carriersWith a free account

Plan types Dr. Kemp accepts, by number of carriers

  1. PPO13
  2. Medicare9
  3. HMO7
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Joanna Marie Kemp'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)Doctors and Clinicians Utilization Data (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)
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. Joanna Marie Kemp

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. Joanna Marie Kemp's NPI number?

Dr. Joanna Marie Kemp's NPI number is 1326277526. It was assigned on July 9, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Joanna Marie Kemp?

Dr. Joanna Marie Kemp is a neurosurgeon in Saint Louis, Missouri. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Joanna Marie Kemp practice?

Dr. Kemp practices at 1201 S Grand Blvd, Saint Louis, MO 63104. Dr. Kemp's primary practice is SSM Health Saint Louis University Hospital in Saint Louis, Missouri, part of SSM Health Care. Dmand AI also links Dr. Kemp to 2 hospitals and 1 behavioral health center.

What is Dr. Joanna Marie Kemp's office phone number?

The practice phone on file for Dr. Kemp is (314) 257-8000.

What is Dr. Joanna Marie Kemp's medical license number?

Dr. Kemp holds Missouri license 2017011917, one of the licenses on file in 3 states.

Which states has Dr. Joanna Marie Kemp been licensed in?

Dmand AI has state licenses on file for Dr. Kemp in Missouri (2017 to 2026), Illinois (2021 to 2026) and California (2016 to 2017).

Which hospitals is Dr. Joanna Marie Kemp affiliated with?

Dr. Kemp practices at SSM Health Saint Louis University Hospital in Saint Louis, Missouri. Dr. Kemp is also affiliated with SSM Health St. Mary's Hospital - St. Louis. Dmand AI links Dr. Kemp to 2 more hospitals.

What medical group is Dr. Joanna Marie Kemp part of?

Dr. Kemp is linked to SLUCare Physician Group.

Does Dr. Joanna Marie Kemp accept Medicare?

Yes. CMS data shows Dr. Kemp billed Medicare for 24 services in 2024, and Dr. Kemp accepts Medicare assignment.

What is Dr. Joanna Marie Kemp's MIPS score?

Dr. Kemp's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Joanna Marie Kemp see?

CMS counts 56 Medicare patients who saw Dr. Kemp in 2024, with an average age of 69.

Is Dr. Joanna Marie Kemp board certified?

Yes. Dr. Kemp is board certified in neurological surgery by the American Board of Neurological Surgery.

What services does Dr. Joanna Marie Kemp bill to Medicare?

In 2024, Dr. Kemp's most billed Medicare services were hospital inpatient care (99222).

Where did Dr. Joanna Marie Kemp go to medical school?

Dr. Kemp graduated from Saint Louis University School Of Medicine in 2009.

What drugs does Dr. Joanna Marie Kemp prescribe most?

In 2023 Medicare Part D data, Dr. Kemp's most prescribed drugs by claims were Cyclobenzaprine HCl.

Has Dr. Joanna Marie Kemp received payments from drug or device companies?

CMS Open Payments shows $10,342 in general payments to Dr. Kemp from 14 companies from 2016 to 2025. The largest total came from Medtronic, Inc.

How long has Dr. Joanna Marie Kemp been practicing?

Dr. Kemp graduated from medical school in 2009, 17 years ago.

Does Dr. Joanna Marie Kemp do research?

Dmand AI links 26 publications to Dr. Kemp, published from 2010 to 2023. Dr. Kemp has worked on 1 clinical trial.

Who does Dr. Joanna Marie Kemp publish with?

Dr. Kemp's most frequent co-authors are Jeroen Raymond Coppens, MD (9 shared papers), Philippe Joseph Arthur Mercier, MD, PhD (8 shared papers) and Georgios Alexopoulos, MD (6 shared papers).

What insurance does Dr. Joanna Marie Kemp accept?

Dr. Kemp is in network with 19 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

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