Dr. Lucy E. Horton, MD, MPH
- Medicare services, 2024
- 49
- Medicare patients, 2024
- 35
- Part D claims, 2022
- 91
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Dr. Horton'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. Lucy E. Horton is an infectious disease specialist in San Diego, California
Dr. Horton practices at UCSD Hillcrest Medical Center in San Diego, California.
Dr. Horton's NPI, 1427324821, was assigned on March 29, 2012. Dr. Horton graduated from Tufts University School Of Medicine in 2012. Dr. Horton holds California license A137391.
- NPI
- 1427324821NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325376346
- NPI enumeration date
- March 29, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lucy E. Horton practices at UCSD Hillcrest Medical Center in San Diego, California
Dr. Horton's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lucy E. Horton is affiliated with 2 sites of care and 1 medical group
Dr. Horton's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Horton is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lucy E. Horton's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Horton practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | 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. Lucy E. Horton is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Horton's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Horton is licensed in California.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
Infectious disease specialists near Dr. Horton
Counts of infectious disease specialists 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. Lucy E. Horton billed Medicare for 49 services in 2024
CMS data shows 49 Medicare services from Dr. Horton across 2 procedure codes in 2024, for 35 Medicare patients. Medicare paid $3,584 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Horton's Medicare services by type, 2022 to 2024
- 2022
- 2024
- Office and hospital visits
- 2022: 2832024: 4983%
Dr. Horton compared with the California median for infectious disease specialists, 2024
- Dr. Horton
- California median
- Medicare services
- 49vs 42989% below
- Medicare patients
- 35vs 18081% below
- Part D claims
- 91vs 11924% below
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Horton'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. Horton and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lucy E. Horton treated 35 Medicare patients in 2024, average age 72
CMS counts 35 Medicare patients who saw Dr. Horton in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 4.29, 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. Horton's median patient age at 58, with 38% women.
Dr. Horton's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Horton's Medicare patients by sex, 2024
- Women1646%
- Men1954%
Chronic conditions among Dr. Horton's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes60%
- Chronic kidney disease57%
- Arthritis51%
- Atrial fibrillation49%
- Cancer46%
- Heart failure46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Horton's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women38%
- Men62%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lucy E. Horton wrote 91 Medicare Part D claims in 2022
In 2022, Dr. Horton wrote 91 Medicare Part D claims. They cover 4 drugs, with $5,371 in total drug cost. In 2021, CMS named 52 claims across 2 drugs.
Dr. Horton's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 522022: 9175%
Drugs named by CMS: 4 in 2022, 2 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Lucy E. Horton scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Horton for performance year 2024, reported as part of a group. Dr. Horton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Horton's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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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Dr. Lucy E. Horton received $10,922 in industry payments from 2018 to 2022
CMS Open Payments shows 17 general payments to Dr. Horton from 4 drug and device companies from 2018 to 2022. Consulting fees make up the largest share, 76% of the total. GlaxoSmithKline, LLC. paid the most, $8,314.
General payments to Dr. Horton by program year, 2018 to 2022
General payments to Dr. Horton by kind, 2018 to 2022
- Consulting fees$8,32276%
- Travel and lodging$1,71416%
- Food and beverage$7086%
- Education$1772%
Companies that paid Dr. Horton the most, 2018 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lucy E. Horton graduated from Tufts University School Of Medicine
Dr. Horton graduated from Tufts University School Of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lucy E. Horton'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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 Dr. Lucy E. Horton
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. Lucy E. Horton's NPI number?
Dr. Lucy E. Horton's NPI number is 1427324821. It was assigned on March 29, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Lucy E. Horton?
Dr. Lucy E. Horton is an infectious disease specialist in San Diego, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Lucy E. Horton practice?
Dr. Horton practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Horton's primary practice is UCSD Hillcrest Medical Center in San Diego, California.
What is Dr. Lucy E. Horton's office phone number?
The practice phone on file for Dr. Horton is (619) 543-6222.
What is Dr. Lucy E. Horton's medical license number?
Dr. Horton holds California license A137391.
Which hospitals is Dr. Lucy E. Horton affiliated with?
Dr. Horton is affiliated with Hillcrest Medical Center.
What medical group is Dr. Lucy E. Horton part of?
Dr. Horton is linked to UC San Diego Health.
Does Dr. Lucy E. Horton accept Medicare?
Yes. CMS data shows Dr. Horton billed Medicare for 49 services in 2024, and Dr. Horton accepts Medicare assignment.
What is Dr. Lucy E. Horton's MIPS score?
Dr. Horton's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Lucy E. Horton see?
CMS counts 35 Medicare patients who saw Dr. Horton in 2024, with an average age of 72.
Show 5 more questionsShow fewer questions
What services does Dr. Lucy E. Horton bill to Medicare?
In 2024, Dr. Horton's most billed Medicare services were hospital inpatient care (99232) and hospital inpatient care (99233).
Where did Dr. Lucy E. Horton go to medical school?
Dr. Horton graduated from Tufts University School Of Medicine in 2012.
What drugs does Dr. Lucy E. Horton prescribe most?
In 2022 Medicare Part D data, Dr. Horton's most prescribed drugs by claims were Atovaquone-Proguanil HCl, Azithromycin and Ciprofloxacin HCl.
Has Dr. Lucy E. Horton received payments from drug or device companies?
CMS Open Payments shows $10,922 in general payments to Dr. Horton from 4 companies from 2018 to 2022. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Lucy E. Horton been practicing?
Dr. Horton graduated from medical school in 2012, 14 years ago.
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