Dr. Nicholas William Karlow, MD
- Medicare services, 2024
- 260
- Medicare patients, 2024
- 261
- Part D claims, 2024
- 123
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 232 S Woods Mill Rd, Chesterfield, MO 63017
- Practice phone
- Call (314) 434-1500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Karlow'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. Nicholas William Karlow is an emergency medicine physician in Chesterfield, Missouri
Dr. Karlow practices at St. Luke's Hospital in Chesterfield, Missouri, part of St. Luke's Episcopal-Presbyterian Hospital.
Dr. Karlow's NPI, 1922669167, was assigned on June 27, 2019. Dr. Karlow holds Missouri license 2022044117.
- NPI
- 1922669167NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0547596777
- NPI enumeration date
- June 27, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 434-1500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas William Karlow practices at St. Luke's Hospital in Chesterfield, Missouri
Dr. Karlow's primary practice is St. Luke's Hospital, at 232 S Woods Mill Rd, Chesterfield, MO 63017 in St. Louis County. The practice phone is (314) 434-1500.
- St. Luke's Hospital232 S Woods Mill Rd, Chesterfield, MO 63017 · St. Louis CountyPhone(314) 434-1500
Source: Dmand AI Affiliation Data
Dr. Nicholas William Karlow is affiliated with 3 sites of care and 8 medical groups
Dr. Karlow's primary practice is St. Luke's Hospital in Chesterfield, Missouri, part of St. Luke's Episcopal-Presbyterian Hospital. Dr. Karlow is also affiliated with Christian Hospital. The medical group on file is Mercy Hospital St. Louis. Dmand AI also links Dr. Karlow to 7 more medical groups and 1 breast imaging center, 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. Nicholas William Karlow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karlow practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Luke's Hospital | Available with a free account |
| +2 more sites and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across St. Luke's Episcopal-Presbyterian Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nicholas William Karlow is one of 1,063 emergency medicine physicians in Missouri
Emergency medicine is Dr. Karlow's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Karlow is licensed in Missouri.
Specialties and state licenses
- Emergency medicine, MissouriPrimary
Emergency medicine physicians near Dr. Karlow
Counts of emergency medicine physicians 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. Nicholas William Karlow billed Medicare for 260 services in 2024
CMS data shows 260 Medicare services from Dr. Karlow across 3 procedure codes in 2024, for 261 Medicare patients. Medicare paid $33,726 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Karlow's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1832024: 26042%
Dr. Karlow compared with the Missouri median for emergency medicine physicians, 2024
- Dr. Karlow
- Missouri median
- Medicare services
- 260vs 252Close to median
- Medicare patients
- 261vs 262Close to median
- Part D claims
- 54vs 6922% below
Medians across 1,092 emergency medicine physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Karlow'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. Karlow?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Karlow and other emergency medicine physicians in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas William Karlow treated 261 Medicare patients in 2024, average age 76
CMS counts 261 Medicare patients who saw Dr. Karlow in 2024. The largest group is 75 to 84, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.06, 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. Karlow's median patient age at 73, with 56% women.
Dr. Karlow's Medicare patients by age, 2024
Dr. Karlow's Medicare patients by sex, 2024
- Women14857%
- Men11343%
Chronic conditions among Dr. Karlow's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Mood disorders53%
- Chronic kidney disease50%
- Depression50%
- Anxiety49%
- Ischemic heart disease44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karlow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women56%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas William Karlow wrote 123 Medicare Part D claims in 2024
In 2024, Dr. Karlow wrote 123 Medicare Part D claims for 67 patients. 92% of them were for generic drugs. CMS names the drug for 54 of them, across 3 drugs with 11 or more claims each, at $263 in total drug cost. In 2023, CMS named 24 claims across 2 drugs.
Dr. Karlow's Part D claims by kind of drug, 2024
- Generic113 claims92%
- Brand-name and other10 claims8%
Dr. Karlow'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. Karlow's Part D claims, 2024
- Opioids15%19 of 123 claims
- Antibiotics20%25 of 123 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: 242024: 54125%
Drugs named by CMS: 3 in 2024, 2 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. Nicholas William Karlow takes part in Medicare
Dr. Karlow accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nicholas William Karlow has 1 publication on record
Dmand AI links 1 paper to Dr. Karlow in 2018. Dr. Karlow's most frequent co-authors are Joshua Paul Miller, MD, Sergey Motov, MD and Charles Haddad Schlaepfer, MD.
Dr. Karlow's most frequent co-authors
- Joshua Paul Miller, MD1 shared paper
- Sergey Motov, MD1 shared paper
- Charles Haddad Schlaepfer, MD1 shared paper
Recent publications by Dr. Karlow
See who Dr. Karlow researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karlow works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. Nicholas William Karlow'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. Nicholas William Karlow
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. Nicholas William Karlow's NPI number?
Dr. Nicholas William Karlow's NPI number is 1922669167. It was assigned on June 27, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas William Karlow?
Dr. Nicholas William Karlow is an emergency medicine physician in Chesterfield, Missouri. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nicholas William Karlow practice?
Dr. Karlow practices at 232 S Woods Mill Rd, Chesterfield, MO 63017. Dr. Karlow's primary practice is St. Luke's Hospital in Chesterfield, Missouri, part of St. Luke's Episcopal-Presbyterian Hospital. Dmand AI also links Dr. Karlow to 7 medical groups and 1 breast imaging center.
What is Dr. Nicholas William Karlow's office phone number?
The practice phone on file for Dr. Karlow is (314) 434-1500.
What is Dr. Nicholas William Karlow's medical license number?
Dr. Karlow holds Missouri license 2022044117.
Which hospitals is Dr. Nicholas William Karlow affiliated with?
Dr. Karlow practices at St. Luke's Hospital in Chesterfield, Missouri. Dr. Karlow is also affiliated with Christian Hospital.
What medical group is Dr. Nicholas William Karlow part of?
Dr. Karlow is linked to Mercy Hospital St. Louis. Dmand AI links Dr. Karlow to 7 more medical groups.
Does Dr. Nicholas William Karlow accept Medicare?
Yes. CMS data shows Dr. Karlow billed Medicare for 260 services in 2024, and Dr. Karlow accepts Medicare assignment.
How many Medicare patients does Dr. Nicholas William Karlow see?
CMS counts 261 Medicare patients who saw Dr. Karlow in 2024, with an average age of 76.
What services does Dr. Nicholas William Karlow bill to Medicare?
In 2024, Dr. Karlow's most billed Medicare services were emergency department visit (99285), critical care (99291) and emergency department visit (99284).
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What drugs does Dr. Nicholas William Karlow prescribe most?
In 2024 Medicare Part D data, Dr. Karlow's most prescribed drugs by claims were Pantoprazole Sodium, Oxycodone HCl and Prednisone.
How long has Dr. Nicholas William Karlow been practicing?
Dr. Karlow graduated from medical school in 2019, 7 years ago.
Does Dr. Nicholas William Karlow do research?
Dmand AI links 1 publication to Dr. Karlow.
Who does Dr. Nicholas William Karlow publish with?
Dr. Karlow's most frequent co-authors are Joshua Paul Miller, MD (1 shared paper), Sergey Motov, MD (1 shared paper) and Charles Haddad Schlaepfer, MD (1 shared paper).
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