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Dr. John Gordon Harold, MD
NPI1508927005
- Medicare services, 2024
- 1,008
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 2,316
- Publications
- 24
- MIPS score, 2024
- 80
- Practice address
- 8700 Beverly Blvd, West Hollywood, CA 90048
- Practice phone
- Call (323) 866-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Cedars-Sinai Medical Center
West Hollywood, California
Find Dr. Harold's professional email, personal email and mobile number
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Dr. John Gordon Harold is a cardiologist in West Hollywood, California
Dr. Harold practices at Cedars-Sinai Medical Center in West Hollywood, California.
Dr. Harold's NPI, 1508927005, was assigned on December 12, 2006. Dr. Harold graduated from Renaissance School of Medicine at Stony Brook University in 1979. Dr. Harold holds California license G046536.
NPI and contact details
- NPI
- 1508927005NPI Registry (opens in a new tab)
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Practice phone
- (323) 866-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John Gordon Harold practices at Cedars-Sinai Medical Center in West Hollywood, California
Dr. Harold's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, West Hollywood, CA 90048 in Los Angeles County. The practice phone is (323) 866-8600.
- Cedars-Sinai Medical Center8700 Beverly Blvd, West Hollywood, CA 90048 · Los Angeles CountyPhone(323) 866-8600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Gordon Harold is affiliated with 2 sites of care and 1 medical group
Dr. Harold's primary practice is Cedars-Sinai Medical Center in West Hollywood, California. The medical group on file is JAY N SCHAPIRA MD INC. Dmand AI also links Dr. Harold to 1 more group practice or clinic, named with a free account.
Cedars-Sinai Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Gordon Harold's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harold practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai 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. John Gordon Harold is one of 2,375 cardiologists in California
Cardiovascular disease is Dr. Harold's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Harold is board certified in cardiovascular disease by the American Board of Internal Medicine. Dr. Harold is licensed in California.
Specialties and state licenses
- Cardiovascular disease, CaliforniaPrimary
Clinical focus
Dmand AI lists aneurysm, aortic atherosclerois, atrial fibrillation and flutter, cerebrovascular disease, chronic hypertension, chronic skin ulcer, coronary artery disease and heart blockage among the conditions Dr. Harold treats.
Cardiologists near Dr. Harold
Counts of cardiologists 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. John Gordon Harold billed Medicare for 1,008 services in 2024
CMS data shows 1,008 Medicare services from Dr. Harold across 18 procedure codes in 2024, for 237 Medicare patients. Medicare paid $75,375 for them.
Medicare services, 20241,008
Medicare patients237
Paid by Medicare$75,375
Procedure codes18
Dr. Harold's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3852024: 63454%
- Tests and treatments
- 2023: 8062024: 21274%
- Surgery
- 2023: 2462024: 9561%
- Lab and pathology
- 2023: 7402024: 4494%
- Imaging
- 2023: 912024: 2375%
- Other services
- 2023: 192024: 0100%
Where Dr. Harold's Medicare services took place, 2024
- In an office77377%
- In a facility23523%
Dr. Harold compared with the California median for cardiologists, 2024
- Dr. Harold
- California median
- Medicare services
- 1,008vs 1,56035% below
- Medicare patients
- 237vs 64463% below
- Part D claims
- 1,924vs 1,41036% above
Medians across 2,237 cardiologists in California with Dmand AI profiles that report each measure.
Dr. Harold'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Gordon Harold treated 237 Medicare patients in 2024, average age 80
CMS counts 237 Medicare patients who saw Dr. Harold in 2024. The largest group is 75 to 84, with 136 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.77, 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. Harold's median patient age at 80, with 46% women.
Medicare patients, 2024237
Average age80
Average risk score1.77
Also on Medicaid7%
Dr. Harold's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Harold's Medicare patients by sex, 2024
- Women11749%
- Men12051%
Chronic conditions among Dr. Harold's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Arthritis60%
- Heart failure55%
- Atrial fibrillation32%
- Cancer28%
- Diabetes27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harold's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Gordon Harold wrote 2,316 Medicare Part D claims in 2024
In 2024, Dr. Harold wrote 2,316 Medicare Part D claims for 261 patients. 83% of them were for generic drugs. CMS names the drug for 1,924 of them, across 44 drugs with 11 or more claims each, at $276,871 in total drug cost. In 2023, CMS named 1,950 claims across 47 drugs.
Part D claims, 20242,316
Drugs named by CMS44
Total drug cost$276,871
Part D patients261
Dr. Harold's Part D claims by kind of drug, 2024
- Generic1,917 claims83%
- Brand-name399 claims17%
Dr. Harold'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. Harold's Part D claims, 2024
- Antibiotics1%30 of 2,316 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: 1,9502024: 1,9241%
Drugs named by CMS: 44 in 2024, 47 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
Dr. John Gordon Harold scored 80 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 80 out of 100 for Dr. Harold for performance year 2024, reported as part of a group.
Dr. Harold's MIPS scores, performance year 2024
- 80of 100Final score
- 73of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 53of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Gordon Harold has 24 publications on record
Dmand AI links 24 papers to Dr. Harold, published from 2012 to 2024. 2013 was the busiest year, with 9. The most frequent topics are Cardiovascular Diseases, American Heart Association and Cardiology. Dr. Harold has published most often in J Am Coll Cardiol. Dr. Harold's most frequent co-authors are Patrick T. O'Gara, MD, Elliott Marshall Antman, MD and David A. Wood, MD.
Papers24
Years published2012 to 2024
Dr. Harold's papers by year, 2012 to 2024
Topics Dr. Harold writes about most
- Cardiovascular Diseases
- American Heart Association
- Cardiology
- Global Health
- Advisory Committees
- Clinical Competence
- Conservation of Natural Resources
- Cooperative Behavior
Dr. Harold's most frequent co-authors
- Patrick T. O'Gara, MD5 shared papers
- Elliott Marshall Antman, MD4 shared papers
- David A. Wood, MD3 shared papers
Recent publications by Dr. Harold
CardiologyCardiovascular DiseasesCooperative Behavior
Cardiovascular DiseasesConservation of Natural ResourcesForecasting
See who Dr. Harold researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Harold works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Gordon Harold received $630 in industry payments from 2016 to 2025
CMS Open Payments shows 17 general payments to Dr. Harold from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 66% of the total. Cardiovascular Systems Inc. paid the most, $282.
General payments to Dr. Harold by program year, 2016 to 2025
General payments to Dr. Harold by kind, 2016 to 2025
$630in total
- Food and beverage$41966%
- Travel and lodging$21134%
Companies that paid Dr. Harold the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Gordon Harold has 9 awards and honors on record
Dmand AI lists 9 awards for Dr. Harold, most recently Top Doctors: LA Area in 2025.
Awards and honors for Dr. Harold
- 2025
- Top Doctors: LA Area
- Top Doctors: Southern California
- 2017
- Honorary Fellow
- 2014
- Master of the ACP
- 2013
- CMS Stage 1 EHR
- 2012
- Master of the ACC
Source: Dmand AI Professional Profile Data
Dr. John Gordon Harold graduated from Renaissance School of Medicine at Stony Brook University
Dr. Harold graduated from Renaissance School of Medicine at Stony Brook University in 1979. Dr. Harold is a member of ACC, ACP, Cardiological Society of India (CSI), Inter-American Society of Cardiology, Irish Cardiac Society and Royal College of Physicians (London).
- Medical school
- Board certified in cardiovascular disease
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. John Gordon Harold'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 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 | Clinician Public Reporting: Overall MIPS Performance (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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. John Gordon Harold
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. John Gordon Harold's NPI number?
Dr. John Gordon Harold's NPI number is 1508927005. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Gordon Harold?
Dr. John Gordon Harold is a cardiologist in West Hollywood, California. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. John Gordon Harold practice?
Dr. Harold practices at 8700 Beverly Blvd, West Hollywood, CA 90048. Dr. Harold's primary practice is Cedars-Sinai Medical Center in West Hollywood, California. Dmand AI also links Dr. Harold to 1 group practice or clinic.
What is Dr. John Gordon Harold's office phone number?
The practice phone on file for Dr. Harold is (323) 866-8600.
What is Dr. John Gordon Harold's medical license number?
Dr. Harold holds California license G046536.
What medical group is Dr. John Gordon Harold part of?
Dr. Harold is linked to JAY N SCHAPIRA MD INC.
Does Dr. John Gordon Harold accept Medicare?
Yes. CMS data shows Dr. Harold billed Medicare for 1,008 services in 2024.
What is Dr. John Gordon Harold's MIPS score?
Dr. Harold's MIPS final score for performance year 2024 is 80 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Gordon Harold see?
CMS counts 237 Medicare patients who saw Dr. Harold in 2024, with an average age of 80.
Is Dr. John Gordon Harold board certified?
Yes. Dr. Harold is board certified in cardiovascular disease by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. John Gordon Harold bill to Medicare?
In 2024, Dr. Harold's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93000) and office visit, established patient (99215).
Where did Dr. John Gordon Harold go to medical school?
Dr. Harold graduated from Renaissance School of Medicine at Stony Brook University in 1979.
What drugs does Dr. John Gordon Harold prescribe most?
In 2024 Medicare Part D data, Dr. Harold's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Losartan Potassium.
Has Dr. John Gordon Harold received payments from drug or device companies?
CMS Open Payments shows $630 in general payments to Dr. Harold from 6 companies from 2016 to 2025. The largest total came from Cardiovascular Systems Inc.
How long has Dr. John Gordon Harold been practicing?
Dr. Harold graduated from medical school in 1979, 47 years ago.
Does Dr. John Gordon Harold do research?
Dmand AI links 24 publications to Dr. Harold, published from 2012 to 2024.
Who does Dr. John Gordon Harold publish with?
Dr. Harold's most frequent co-authors are Patrick T. O'Gara, MD (5 shared papers), Elliott Marshall Antman, MD (4 shared papers) and David A. Wood, MD (3 shared papers).
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