Dr. Jonathan Ghiam, DO

  • Los Angeles, CA
  • Family medicine physician
NPI1336516277PAC ID3173866308
Medicare services, 2024
386
Medicare patients, 2024
96
Part D claims, 2024
281
Hospital affiliations
1
Industry payments
$163
Practice address
1401 South Grand Avenue, Los Angeles, CA 90015
Practice phone
Call (213) 748-2411
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Dignity Health - California Hospital Medical Center

Hospital · Los Angeles, California

See all 4 affiliations

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Dr. Jonathan Ghiam is a family medicine physician in Los Angeles, California

Dr. Ghiam practices at Dignity Health - California Hospital Medical Center in Los Angeles, California, part of CommonSpirit Health.

Dr. Ghiam's NPI, 1336516277, was assigned on August 26, 2015. Dr. Ghiam graduated from WesternU College of Osteopathic Medicine of the Pacific in 2015. Dr. Ghiam holds California license 20A16421.

NPI and contact details
Medicare PAC ID
3173866308
NPI enumeration date
August 26, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(213) 748-2411
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

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

Dr. Jonathan Ghiam practices at Dignity Health - California Hospital Medical Center in Los Angeles, California

Dr. Ghiam's primary practice is Dignity Health - California Hospital Medical Center, at 1401 South Grand Avenue, Los Angeles, CA 90015 in Los Angeles County. The practice phone is (213) 748-2411.

Source: Dmand AI Affiliation Data

Dr. Jonathan Ghiam is affiliated with 2 sites of care and 2 medical groups

Dr. Ghiam's primary practice is Dignity Health - California Hospital Medical Center in Los Angeles, California, part of CommonSpirit Health. The medical group on file is Hospitalist Group of Montebello. Dmand AI also links Dr. Ghiam to 1 more physician office and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Ghiam

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Jonathan Ghiam's practice

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

EHR by site
SiteEHR vendor and product
Dignity Health - California Hospital Medical CenterAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Jonathan Ghiam is one of 15,680 family medicine physicians in California

Family medicine is Dr. Ghiam's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Ghiam is board certified in family practice and osteopathic manipulative medicine by the AOA Board of Family Physicians. Dmand AI has Dr. Ghiam's licenses on file in 2 states: California and Florida.

Specialties and state licenses

  • Family medicine, CaliforniaPrimaryLicense 20A16421 · 2018 to 2026 · taxonomy 207Q00000X
  • Florida licenseSince 2024

Clinical focus

Dmand AI lists chronic anemia, chronic hypertension, chronic skin ulcer, circulatory problems in extremities, congestive heart failure, epilepsy, heart attack and heart failure among the conditions Dr. Ghiam treats.

Family medicine physicians near Dr. Ghiam

Counts of family 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. Jonathan Ghiam billed Medicare for 386 services in 2024

CMS data shows 386 Medicare services from Dr. Ghiam across 7 procedure codes in 2024, for 96 Medicare patients. Medicare paid $35,008 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024386
Medicare patients96
Paid by Medicare$35,008
Procedure codes7

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

  • 2023
  • 2024
Office and hospital visits
2023: 4662024: 38617%

Dr. Ghiam compared with the California median for family medicine physicians, 2024

  • Dr. Ghiam
  • California median
Medicare services
386vs 24657% above
Medicare patients
96vs 11819% below
Part D claims
119vs 83386% below

Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Ghiam'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. Ghiam

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

Dr. Jonathan Ghiam treated 96 Medicare patients in 2024, average age 70

CMS counts 96 Medicare patients who saw Dr. Ghiam in 2024. The largest group is 65 to 74, with 46 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 3.60, 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. Ghiam's median patient age at 57, with 47% women.

Medicare patients, 202496
Average age70
Average risk score3.60

Dr. Ghiam's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Ghiam's Medicare patients by sex, 2024

  • Women4446%
  • Men5254%

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

  1. Diabetes75%
  2. High blood pressure75%
  3. High cholesterol73%
  4. Chronic kidney disease63%
  5. Arthritis59%
  6. Heart failure58%
  7. Ischemic heart disease50%
  8. COPD49%

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

Dr. Ghiam's patients across all payers

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

Patient panel by age, all payers

Median age 57

Patient panel by sex, all payers

  • Women47%
  • Men53%

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

Dr. Jonathan Ghiam wrote 281 Medicare Part D claims in 2024

In 2024, Dr. Ghiam wrote 281 Medicare Part D claims for 80 patients. 84% of them were for generic drugs. CMS names the drug for 119 of them, across 7 drugs with 11 or more claims each, at $417 in total drug cost. In 2023, CMS named 75 claims across 5 drugs.

Part D claims, 2024281
Drugs named by CMS7
Total drug cost$417
Part D patients80

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

  • Generic235 claims84%
  • Brand-name and other46 claims16%

Dr. Ghiam'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. Ghiam's Part D claims, 2024

  • Antibiotics11%30 of 281 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: 752024: 11959%

Drugs named by CMS: 7 in 2024, 5 in 2023.

See all prescribing by Dr. Ghiam

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. Jonathan Ghiam offers telehealth to Medicare patients

Dr. Ghiam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ghiam as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Jonathan Ghiam received $163 in industry payments from 2017 to 2024

CMS Open Payments shows 3 general payments to Dr. Ghiam from 3 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 100% of the total. ViiV Healthcare Company paid the most, $125.

General payments to Dr. Ghiam by program year, 2017 to 2024

Companies that paid Dr. Ghiam the most, 2017 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Ghiam

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

Dr. Jonathan Ghiam graduated from WesternU College of Osteopathic Medicine of the Pacific

Dr. Ghiam graduated from WesternU College of Osteopathic Medicine of the Pacific in 2015.

  1. Medical schoolWesternU College of Osteopathic Medicine of the Pacific
  2. Board certified in family practice and osteopathic manipulative medicineAOA Board of Family Physicians

Source: Dmand AI Professional Profile Data

Dr. Jonathan Ghiam accepts plans from 2 insurance carriers

Dr. Ghiam is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

  • CMS Medicare
  • Molina

Source: Dmand AI Insurance Network Data

Sources for Dr. Jonathan Ghiam'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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. Jonathan Ghiam

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. Jonathan Ghiam's NPI number?

Dr. Jonathan Ghiam's NPI number is 1336516277. It was assigned on August 26, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Jonathan Ghiam?

Dr. Jonathan Ghiam is a family medicine physician in Los Angeles, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Dr. Jonathan Ghiam practice?

Dr. Ghiam practices at 1401 South Grand Avenue, Los Angeles, CA 90015. Dr. Ghiam's primary practice is Dignity Health - California Hospital Medical Center in Los Angeles, California, part of CommonSpirit Health. Dmand AI also links Dr. Ghiam to 1 physician office and 1 medical group.

What is Dr. Jonathan Ghiam's office phone number?

The practice phone on file for Dr. Ghiam is (213) 748-2411.

What is Dr. Jonathan Ghiam's medical license number?

Dr. Ghiam holds California license 20A16421, one of the licenses on file in 2 states.

Which states has Dr. Jonathan Ghiam been licensed in?

Dmand AI has state licenses on file for Dr. Ghiam in California (2018 to 2026) and Florida (since 2024).

Which hospitals is Dr. Jonathan Ghiam affiliated with?

Dr. Ghiam practices at Dignity Health - California Hospital Medical Center in Los Angeles, California.

What medical group is Dr. Jonathan Ghiam part of?

Dr. Ghiam is linked to Hospitalist Group of Montebello. Dmand AI links Dr. Ghiam to 1 more medical group.

Does Dr. Jonathan Ghiam accept Medicare?

Yes. CMS data shows Dr. Ghiam billed Medicare for 386 services in 2024, and Dr. Ghiam accepts Medicare assignment.

Does Dr. Jonathan Ghiam offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Ghiam as offering telehealth services.

Show 8 more questionsShow fewer questions

How many Medicare patients does Dr. Jonathan Ghiam see?

CMS counts 96 Medicare patients who saw Dr. Ghiam in 2024, with an average age of 70.

Is Dr. Jonathan Ghiam board certified?

Yes. Dr. Ghiam is board certified in family practice and osteopathic manipulative medicine by the AOA Board of Family Physicians.

What services does Dr. Jonathan Ghiam bill to Medicare?

In 2024, Dr. Ghiam's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and care management and other visits (99497).

Where did Dr. Jonathan Ghiam go to medical school?

Dr. Ghiam graduated from WesternU College of Osteopathic Medicine of the Pacific in 2015.

What drugs does Dr. Jonathan Ghiam prescribe most?

In 2024 Medicare Part D data, Dr. Ghiam's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Furosemide.

Has Dr. Jonathan Ghiam received payments from drug or device companies?

CMS Open Payments shows $163 in general payments to Dr. Ghiam from 3 companies from 2017 to 2024. The largest total came from ViiV Healthcare Company.

How long has Dr. Jonathan Ghiam been practicing?

Dr. Ghiam graduated from medical school in 2015, 11 years ago.

What insurance does Dr. Jonathan Ghiam accept?

Dr. Ghiam is in network with 2 carriers, including CMS Medicare and Molina. Medicare plans come from the most carriers, 2. Check the plan with the practice before a visit.

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