Dr. Brian J. Clay, MD

  • San Diego, CA
  • Hospitalist
NPI1831124635PAC ID3173715281
Medicare services, 2024
95
Medicare patients, 2024
40
Part D claims, 2024
48
Publications
30
MIPS score, 2024
91
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 4 affiliations

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Dr. Brian J. Clay is a hospitalist in San Diego, California

Dr. Clay practices at UCSD Hillcrest Medical Center in San Diego, California.

Dr. Clay's NPI, 1831124635, was assigned on July 11, 2006. Dr. Clay graduated from UC San Diego School of Medicine in 2000. Dr. Clay holds California license A83799.

NPI and contact details
Medicare PAC ID
3173715281
NPI enumeration date
July 11, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(619) 543-6222
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
52
Medical school graduation
2000

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

Dr. Brian J. Clay practices at UCSD Hillcrest Medical Center in San Diego, California

Dr. Clay'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 Center
    200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Brian J. Clay is affiliated with 3 sites of care and 1 medical group

Dr. Clay's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Clay is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Clay to 1 more hospital, named with a free account.

See all 4 affiliations for Dr. Clay

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. Brian J. Clay's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clay practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Brian J. Clay is one of 3,186 hospitalists in California

Hospitalist is Dr. Clay's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Clay is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Clay's licenses on file in 2 states: California and Tennessee.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A83799 · 2003 to 2027 · taxonomy 208M00000X
  • Tennessee license2002 to 2004

Clinical focus

Dmand AI lists acute respiratory failure, bile duct problems, electrolyte disorders and sepsis among the conditions Dr. Clay treats.

Hospitalists near Dr. Clay

Counts of hospitalists 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. Brian J. Clay billed Medicare for 95 services in 2024

CMS data shows 95 Medicare services from Dr. Clay across 3 procedure codes in 2024, for 40 Medicare patients. Medicare paid $7,473 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202495
Medicare patients40
Paid by Medicare$7,473
Procedure codes3

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

  • 2023
  • 2024
Office and hospital visits
2023: 1262024: 9525%

Dr. Clay compared with the California median for hospitalists, 2024

  • Dr. Clay
  • California median
Medicare services
95vs 43078% below
Medicare patients
40vs 20180% below

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Dr. Clay'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. Clay

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

Dr. Brian J. Clay treated 40 Medicare patients in 2024, average age 70

CMS counts 40 Medicare patients who saw Dr. Clay in 2024. The largest group is 65 to 74, with 16 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 55% are also on Medicaid. Their average risk score is 3.29, 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. Clay's median patient age at 53, with 62% women.

Medicare patients, 202440
Average age70
Average risk score3.29
Also on Medicaid55%

Dr. Clay's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Clay's Medicare patients by sex, 2024

  • Women1128%
  • Men2973%

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

  1. High blood pressure75%
  2. High cholesterol73%
  3. Arthritis60%
  4. Heart failure58%
  5. Diabetes55%
  6. Mood disorders53%
  7. Chronic kidney disease48%
  8. Depression48%

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

Dr. Clay's patients across all payers

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

Patient panel by age, all payers

Median age 53

Patient panel by sex, all payers

  • Women62%
  • Men38%

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

Dr. Brian J. Clay wrote 48 Medicare Part D claims in 2024

In 2024, Dr. Clay wrote 48 Medicare Part D claims for 18 patients. 85% of them were for generic drugs.

Part D claims, 202448
Part D patients18

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

  • Generic41 claims85%
  • Brand-name and other7 claims15%

Drug classes CMS tracks in Dr. Clay's Part D claims, 2024

  • Antibiotics33%16 of 48 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Brian J. Clay 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. Clay for performance year 2024, reported as part of a group. Dr. Clay accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Clay'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. Brian J. Clay has 30 publications on record

Dmand AI links 30 papers to Dr. Clay, published from 2014 to 2024. 2017 was the busiest year, with 2. The most frequent topics are Electronic Health Records, COVID-19 and Decision Support Systems, Clinical. Dr. Clay has published most often in Appl Clin Inform. Dr. Clay's most frequent co-authors are Christopher A. Longhurst, MD, Nicole Hamilton Goldhaber and Marlene May Millen, MD.

Papers30
Years published2014 to 2024

Dr. Clay's papers by year, 2014 to 2024

Topics Dr. Clay writes about most

  • Electronic Health Records
  • COVID-19
  • Decision Support Systems, Clinical
  • Physicians
  • Academic Medical Centers
  • Pandemics
  • Telemedicine
  • California

Dr. Clay's most frequent co-authors

Recent publications by Dr. Clay

See all 30 publications and co-authors

See who Dr. Clay researches with

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

How network discovery works

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

Dr. Brian J. Clay received $21 in industry payments in 2020

CMS Open Payments shows 1 general payment to Dr. Clay from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $21.

Companies that paid Dr. Clay the most, 2020 to 2020

Share is of all general payments to this clinician.

See all payments to Dr. Clay

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

Dr. Brian J. Clay has 3 awards and honors on record

Dmand AI lists 3 awards for Dr. Clay, most recently Faculty Teaching Award, Medicine 401 Core Clerkship in 2010. Dr. Clay serves on IT Committee Society of Hospital Medicine.

Awards and honors for Dr. Clay

  1. 2010
    • Faculty Teaching Award, Medicine 401 Core Clerkship
  2. 2009
    • Nominee, Kaiser Excellence in Teaching Award
  3. 2008
    • Faculty Teaching Award, Internal Medicine Residency Program

Dr. Clay's committees and leadership roles

IT Committee Society of Hospital MedicineMember
2008 to present

Source: Dmand AI Professional Profile Data

Dr. Brian J. Clay graduated from UC San Diego School of Medicine

Dr. Clay graduated from UC San Diego School of Medicine in 2000. Dr. Clay is a member of ACP.

  1. Medical schoolUC San Diego School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in clinical informaticsAmerican Board of Preventive Medicine

Source: Dmand AI Professional Profile Data

Dr. Brian J. Clay accepts plans from 14 insurance carriers

Dr. Clay is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Molina
  • Regence Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Clay accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Brian J. Clay'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 (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
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. Brian J. Clay

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. Brian J. Clay's NPI number?

Dr. Brian J. Clay's NPI number is 1831124635. It was assigned on July 11, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Brian J. Clay?

Dr. Brian J. Clay is a hospitalist in San Diego, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Brian J. Clay practice?

Dr. Clay practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Clay's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Dr. Clay to 1 hospital.

What is Dr. Brian J. Clay's office phone number?

The practice phone on file for Dr. Clay is (619) 543-6222.

What is Dr. Brian J. Clay's medical license number?

Dr. Clay holds California license A83799, one of the licenses on file in 2 states.

Which states has Dr. Brian J. Clay been licensed in?

Dmand AI has state licenses on file for Dr. Clay in California (2003 to 2027) and Tennessee (2002 to 2004).

Which hospitals is Dr. Brian J. Clay affiliated with?

Dr. Clay is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Clay to 1 more hospital.

What medical group is Dr. Brian J. Clay part of?

Dr. Clay is linked to UC San Diego Health.

Does Dr. Brian J. Clay accept Medicare?

Yes. CMS data shows Dr. Clay billed Medicare for 95 services in 2024, and Dr. Clay accepts Medicare assignment.

What is Dr. Brian J. Clay's MIPS score?

Dr. Clay's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

Show 9 more questionsShow fewer questions

How many Medicare patients does Dr. Brian J. Clay see?

CMS counts 40 Medicare patients who saw Dr. Clay in 2024, with an average age of 70.

Is Dr. Brian J. Clay board certified?

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

What services does Dr. Brian J. Clay bill to Medicare?

In 2024, Dr. Clay's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99238).

Where did Dr. Brian J. Clay go to medical school?

Dr. Clay graduated from UC San Diego School of Medicine in 2000.

Has Dr. Brian J. Clay received payments from drug or device companies?

CMS Open Payments shows $21 in general payments to Dr. Clay from 1 company from 2020 to 2020. The largest total came from Boston Scientific Corporation.

How long has Dr. Brian J. Clay been practicing?

Dr. Clay graduated from medical school in 2000, 26 years ago.

Does Dr. Brian J. Clay do research?

Dmand AI links 30 publications to Dr. Clay, published from 2014 to 2024.

Who does Dr. Brian J. Clay publish with?

Dr. Clay's most frequent co-authors are Christopher A. Longhurst, MD (18 shared papers), Nicole Hamilton Goldhaber (4 shared papers) and Marlene May Millen, MD (4 shared papers).

What insurance does Dr. Brian J. Clay accept?

Dr. Clay is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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