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Dr. Karen Keller Baker, MD
NPI1457641433
- Medicare services, 2024
- 339
- Medicare patients, 2024
- 256
- Part D claims, 2024
- 53
- Publications
- 10
- Hospital affiliations
- 1
- Practice address
- 500 Upper Chesapeake Drive, Bel Air, MD 21014
- Practice phone
- Call (443) 643-3303
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Baker'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. Karen Keller Baker is an emergency medicine physician in Bel Air, Maryland
Dr. Baker practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System.
Dr. Baker's NPI, 1457641433, was assigned on April 12, 2011. Dr. Baker graduated from Tulane University School of Medicine in 2011. Dr. Baker holds Maryland license D77553.
NPI and contact details
- NPI
- 1457641433NPI Registry (opens in a new tab)
- NPI enumeration date
- April 12, 2011
- NPI status
- Active
- Practice phone
- (443) 643-3303
- 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; and Dmand AI Affiliation Data
Dr. Karen Keller Baker practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland
Dr. Baker's primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air, at 500 Upper Chesapeake Drive, Bel Air, MD 21014 in Harford County. The practice phone is (443) 643-3303.
- University of Maryland Upper Chesapeake Medical Center Bel Air500 Upper Chesapeake Drive, Bel Air, MD 21014 · Harford CountyPhone(443) 643-3303
Source: Dmand AI Affiliation Data
Dr. Karen Keller Baker is affiliated with 2 sites of care and 1 medical group
Dr. Baker's primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System. The medical group on file is Emergency Medicine Physicians (EMP). Dmand AI also links Dr. Baker to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karen Keller Baker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Baker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Upper Chesapeake Medical Center Bel Air | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen Keller Baker is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Baker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Baker's licenses on file in 2 states: Maryland and California.
Specialties and state licenses
- Emergency medicine, MarylandPrimary
- California license
Emergency medicine physicians near Dr. Baker
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
1,057emergency medicine physicians in Maryland40emergency medicine physicians in Bel Air35emergency medicine physicians at University of Maryland Upper Chesapeake Medical Center Bel Air
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Karen Keller Baker billed Medicare for 339 services in 2024
CMS data shows 339 Medicare services from Dr. Baker across 4 procedure codes in 2024, for 256 Medicare patients. Medicare paid $35,967 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024339
Medicare patients256
Paid by Medicare$35,967
Procedure codes4
Dr. Baker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2862024: 25013%
- Tests and treatments
- 2023: 1072024: 8917%
Dr. Baker compared with the Maryland median for emergency medicine physicians, 2024
- Dr. Baker
- Maryland median
- Medicare services
- 339vs 30013% above
- Medicare patients
- 256vs 29212% below
- Part D claims
- 11vs 4475% below
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Baker'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. Baker and other emergency medicine physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen Keller Baker treated 256 Medicare patients in 2024, average age 74
CMS counts 256 Medicare patients who saw Dr. Baker in 2024. The largest group is 65 to 74, with 82 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 2.66, 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. Baker's median patient age at 44, with 57% women.
Medicare patients, 2024256
Average age74
Average risk score2.66
Also on Medicaid29%
Dr. Baker's Medicare patients by age, 2024
Dr. Baker's Medicare patients by sex, 2024
- Women15360%
- Men10340%
Chronic conditions among Dr. Baker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes54%
- Arthritis52%
- Chronic kidney disease52%
- Heart failure42%
- Ischemic heart disease41%
- Anxiety32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Baker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karen Keller Baker wrote 53 Medicare Part D claims in 2024
In 2024, Dr. Baker wrote 53 Medicare Part D claims for 43 patients. 98% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $23 in total drug cost. In 2023, CMS named 11 claims across 1 drug.
Part D claims, 202453
Drugs named by CMS1
Total drug cost$23
Part D patients43
Dr. Baker's Part D claims by kind of drug, 2024
- Generic52 claims98%
- Brand-name and other1 claims2%
Dr. Baker'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. Baker's Part D claims, 2024
- Opioids23%12 of 53 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: 112024: 11No change
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
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Dr. Karen Keller Baker has 10 publications on record
Dmand AI links 10 papers to Dr. Baker, published from 2011 to 2017. 2011 was the busiest year, with 2. The most frequent topics are Palliative Care and Communication. Dr. Baker has published most often in Am J Hosp Palliat Care. Dr. Baker's most frequent co-authors are Daniel Aaron Handel, MD, Andrea Borghese Apolo, MD and Jennifer Cheng, MD.
Papers10
Years published2011 to 2017
Dr. Baker's papers by year, 2011 to 2017
Topics Dr. Baker writes about most
- Palliative Care
- Communication
Dr. Baker's most frequent co-authors
- Daniel Aaron Handel, MD2 shared papers
- Andrea Borghese Apolo, MD1 shared paper
- Jennifer Cheng, MD1 shared paper
Recent publications by Dr. Baker
See who Dr. Baker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Baker 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
Dr. Karen Keller Baker received $166 in industry payments from 2021 to 2025
CMS Open Payments shows 4 general payments to Dr. Baker from 4 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Vapotherm Inc paid the most, $106.
General payments to Dr. Baker by program year, 2021 to 2025
Companies that paid Dr. Baker 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. Karen Keller Baker graduated from Tulane University School of Medicine
Dr. Baker graduated from Tulane University School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen Keller Baker'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Karen Keller Baker
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. Karen Keller Baker's NPI number?
Dr. Karen Keller Baker's NPI number is 1457641433. It was assigned on April 12, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen Keller Baker?
Dr. Karen Keller Baker is an emergency medicine physician in Bel Air, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Karen Keller Baker practice?
Dr. Baker practices at 500 Upper Chesapeake Drive, Bel Air, MD 21014. Dr. Baker's primary practice is University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland, part of University of Maryland Medical System. Dmand AI also links Dr. Baker to 1 group practice or clinic.
What is Dr. Karen Keller Baker's office phone number?
The practice phone on file for Dr. Baker is (443) 643-3303.
What is Dr. Karen Keller Baker's medical license number?
Dr. Baker holds Maryland license D77553, one of the licenses on file in 2 states.
Which states has Dr. Karen Keller Baker been licensed in?
Dmand AI has state licenses on file for Dr. Baker in Maryland and California.
Which hospitals is Dr. Karen Keller Baker affiliated with?
Dr. Baker practices at University of Maryland Upper Chesapeake Medical Center Bel Air in Bel Air, Maryland.
What medical group is Dr. Karen Keller Baker part of?
Dr. Baker is linked to Emergency Medicine Physicians (EMP).
Does Dr. Karen Keller Baker accept Medicare?
Yes. CMS data shows Dr. Baker billed Medicare for 339 services in 2024.
How many Medicare patients does Dr. Karen Keller Baker see?
CMS counts 256 Medicare patients who saw Dr. Baker in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Karen Keller Baker bill to Medicare?
In 2024, Dr. Baker's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. Karen Keller Baker go to medical school?
Dr. Baker graduated from Tulane University School of Medicine in 2011.
What drugs does Dr. Karen Keller Baker prescribe most?
In 2024 Medicare Part D data, Dr. Baker's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Karen Keller Baker received payments from drug or device companies?
CMS Open Payments shows $166 in general payments to Dr. Baker from 4 companies from 2021 to 2025. The largest total came from Vapotherm Inc.
How long has Dr. Karen Keller Baker been practicing?
Dr. Baker graduated from medical school in 2011, 15 years ago.
Does Dr. Karen Keller Baker do research?
Dmand AI links 10 publications to Dr. Baker, published from 2011 to 2017.
Who does Dr. Karen Keller Baker publish with?
Dr. Baker's most frequent co-authors are Daniel Aaron Handel, MD (2 shared papers), Andrea Borghese Apolo, MD (1 shared paper) and Jennifer Cheng, MD (1 shared paper).
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