Dr. Joshua Lee Partnow, MD
- Medicare services, 2024
- 241
- Medicare patients, 2024
- 156
- Part D claims, 2024
- 177
- MIPS score, 2024
- 100
- Hospital affiliations
- 1
- 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
- Get mobile number
Find Dr. Partnow's professional email, personal email and mobile number
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Dr. Joshua Lee Partnow is an emergency medicine physician in Los Angeles, California
Dr. Partnow practices at Dignity Health - California Hospital Medical Center in Los Angeles, California, part of CommonSpirit Health.
Dr. Partnow's NPI, 1245338409, was assigned on September 20, 2006. Dr. Partnow graduated from Rutgers New Jersey Medical School in 2001. Dr. Partnow's New Jersey license number on file is 25MA00774270.
- NPI
- 1245338409NPI Registry (opens in a new tab)
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Practice phone
- (213) 748-2411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Joshua Lee Partnow practices at Dignity Health - California Hospital Medical Center in Los Angeles, California
Dr. Partnow'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.
- Dignity Health - California Hospital Medical Center1401 South Grand Avenue, Los Angeles, CA 90015 · Los Angeles CountyPhone(213) 748-2411
Source: Dmand AI Affiliation Data
Dr. Joshua Lee Partnow is affiliated with 1 site of care and 3 medical groups
Dr. Partnow's primary practice is Dignity Health - California Hospital Medical Center in Los Angeles, California, part of CommonSpirit Health. The medical group on file is Golden State Emergency Physicians, Inc. Dmand AI also links Dr. Partnow to 2 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joshua Lee Partnow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Partnow practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - California Hospital Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joshua Lee Partnow is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Partnow's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Partnow is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Partnow's licenses on file in 4 states: New Jersey, California, New York and Hawaii.
Specialties and state licenses
- Emergency medicine, New JerseyPrimary
- California license
- New York license
- Hawaii license
Emergency medicine physicians near Dr. Partnow
Counts of emergency 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. Joshua Lee Partnow billed Medicare for 241 services in 2024
CMS data shows 241 Medicare services from Dr. Partnow across 4 procedure codes in 2024, for 156 Medicare patients. Medicare paid $21,181 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Partnow's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2222024: 15829%
- Tests and treatments
- 2023: 1562024: 8347%
Dr. Partnow compared with the California median for emergency medicine physicians, 2024
- Dr. Partnow
- California median
- Medicare services
- 241vs 2659% below
- Medicare patients
- 156vs 24336% below
- Part D claims
- 31vs 6250% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Partnow'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. Joshua Lee Partnow treated 156 Medicare patients in 2024, average age 69
CMS counts 156 Medicare patients who saw Dr. Partnow in 2024. The largest group is 65 to 74, with 58 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 65% are also on Medicaid. Their average risk score is 2.15, 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. Partnow's median patient age at 41, with 55% women.
Dr. Partnow's Medicare patients by age, 2024
Dr. Partnow's Medicare patients by sex, 2024
- Women7548%
- Men8152%
Chronic conditions among Dr. Partnow's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes50%
- Mood disorders40%
- Anxiety39%
- Chronic kidney disease37%
- Depression35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Partnow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joshua Lee Partnow wrote 177 Medicare Part D claims in 2024
In 2024, Dr. Partnow wrote 177 Medicare Part D claims for 103 patients. 95% of them were for generic drugs. CMS names the drug for 31 of them, across 1 drug with 11 or more claims each, at $126 in total drug cost. In 2023, CMS named 46 claims across 2 drugs.
Dr. Partnow's Part D claims by kind of drug, 2024
- Generic168 claims95%
- Brand-name and other9 claims5%
Dr. Partnow'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. Partnow's Part D claims, 2024
- Antibiotics37%65 of 177 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: 462024: 3133%
Drugs named by CMS: 1 in 2024, 2 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. Joshua Lee Partnow scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Partnow for performance year 2024, reported as part of a group.
Dr. Partnow's MIPS scores, performance year 2024
- 100of 100Final score
- 92.6of 100Quality
- 40of 100Improvement Activities
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. Joshua Lee Partnow received $487 in industry payments from 2017 to 2022
CMS Open Payments shows 6 general payments to Dr. Partnow from 6 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 59% of the total. Radiometer America, Inc paid the most, $200.
General payments to Dr. Partnow by program year, 2017 to 2022
General payments to Dr. Partnow by kind, 2017 to 2022
- Food and beverage$28759%
- Consulting fees$20041%
Companies that paid Dr. Partnow the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joshua Lee Partnow graduated from Rutgers New Jersey Medical School
Dr. Partnow graduated from Rutgers New Jersey Medical School in 2001.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Joshua Lee Partnow accepts plans from 5 insurance carriers
Dr. Partnow is in network with 5 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and DentaQuest. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- DentaQuest
- Elevance
- HCSC
Plan types Dr. Partnow accepts, by number of carriers
- PPO3
- HMO2
- EPO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Joshua Lee Partnow'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Joshua Lee Partnow
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. Joshua Lee Partnow's NPI number?
Dr. Joshua Lee Partnow's NPI number is 1245338409. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joshua Lee Partnow?
Dr. Joshua Lee Partnow is an emergency medicine physician in Los Angeles, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Joshua Lee Partnow practice?
Dr. Partnow practices at 1401 South Grand Avenue, Los Angeles, CA 90015. Dr. Partnow's primary practice is Dignity Health - California Hospital Medical Center in Los Angeles, California, part of CommonSpirit Health. Dmand AI also links Dr. Partnow to 2 medical groups.
What is Dr. Joshua Lee Partnow's office phone number?
The practice phone on file for Dr. Partnow is (213) 748-2411.
What is Dr. Joshua Lee Partnow's medical license number?
Dr. Partnow's New Jersey license number on file is 25MA00774270, one of the licenses on file in 4 states.
Which states has Dr. Joshua Lee Partnow been licensed in?
Dmand AI has state licenses on file for Dr. Partnow in New Jersey (2004 to 2009), California (2006 to 2026), New York (2003 to 2026) and Hawaii (2016 to 2022).
Which hospitals is Dr. Joshua Lee Partnow affiliated with?
Dr. Partnow practices at Dignity Health - California Hospital Medical Center in Los Angeles, California.
What medical group is Dr. Joshua Lee Partnow part of?
Dr. Partnow is linked to Golden State Emergency Physicians, Inc. Dmand AI links Dr. Partnow to 2 more medical groups.
Does Dr. Joshua Lee Partnow accept Medicare?
Yes. CMS data shows Dr. Partnow billed Medicare for 241 services in 2024.
What is Dr. Joshua Lee Partnow's MIPS score?
Dr. Partnow's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Joshua Lee Partnow see?
CMS counts 156 Medicare patients who saw Dr. Partnow in 2024, with an average age of 69.
Is Dr. Joshua Lee Partnow board certified?
Yes. Dr. Partnow is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Joshua Lee Partnow bill to Medicare?
In 2024, Dr. Partnow's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Where did Dr. Joshua Lee Partnow go to medical school?
Dr. Partnow graduated from Rutgers New Jersey Medical School in 2001.
What drugs does Dr. Joshua Lee Partnow prescribe most?
In 2024 Medicare Part D data, Dr. Partnow's most prescribed drugs by claims were Cephalexin.
Has Dr. Joshua Lee Partnow received payments from drug or device companies?
CMS Open Payments shows $487 in general payments to Dr. Partnow from 6 companies from 2017 to 2022. The largest total came from Radiometer America, Inc.
How long has Dr. Joshua Lee Partnow been practicing?
Dr. Partnow graduated from medical school in 2001, 25 years ago.
What insurance does Dr. Joshua Lee Partnow accept?
Dr. Partnow is in network with 5 carriers, including United Healthcare, Blue Cross and Blue Shield of Kansas City and DentaQuest. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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