Dr. John D. Cha, MD
- Medicare services, 2024
- 806
- Medicare patients, 2024
- 303
- Part D claims, 2024
- 345
- MIPS score, 2024
- 100
- Hospital affiliations
- 3
- Practice address
- 6501 Coyle Ave, Carmichael, CA 95608
- Practice phone
- Call (916) 537-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Cha's professional email, personal email and mobile number
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Dr. John D. Cha is a hospitalist in Carmichael, California
Dr. Cha practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health.
Dr. Cha's NPI, 1548616337, was assigned on May 11, 2016. Dr. Cha graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2015. Dr. Cha's California license number on file is A163988.
- NPI
- 1548616337NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729370911
- NPI enumeration date
- May 11, 2016
- NPI status
- Active
- Practice phone
- (916) 537-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John D. Cha practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California
Dr. Cha's primary practice is Dignity Health - Mercy San Juan Medical Center, at 6501 Coyle Ave, Carmichael, CA 95608 in Sacramento County. The practice phone is (916) 537-5000.
- Dignity Health - Mercy San Juan Medical Center6501 Coyle Ave, Carmichael, CA 95608 · Sacramento CountyPhone(916) 537-5000
Source: Dmand AI Affiliation Data
Dr. John D. Cha is affiliated with 5 sites of care and 2 medical groups
Dr. Cha's primary practice is Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health. Dr. Cha is also affiliated with Dignity Health - Mercy General Hospital. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Cha to 1 more hospital, 2 group practices and clinics and 1 medical group, 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. John D. Cha's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cha practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy San Juan Medical Center | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John D. Cha is one of 3,186 hospitalists in California
Hospitalist is Dr. Cha's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Cha is board certified in internal medicine by the American Board of Internal Medicine. Dr. Cha has a license on file in California.
Specialties and state licenses
- Hospitalist, CaliforniaPrimary
Clinical focus
Dmand AI lists cardiac arrhythmia, cellulitis, chest pain, circulation problems, circulatory problems in extremities, congestive heart failure, electrolyte disorders and gastrointestinal bleeding among the conditions Dr. Cha treats.
Hospitalists near Dr. Cha
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. John D. Cha billed Medicare for 806 services in 2024
CMS data shows 806 Medicare services from Dr. Cha across 5 procedure codes in 2024, for 303 Medicare patients. Medicare paid $81,231 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Cha's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7432024: 8068%
Dr. Cha compared with the California median for hospitalists, 2024
- Dr. Cha
- California median
- Medicare services
- 806vs 43087% above
- Medicare patients
- 303vs 20151% above
- Part D claims
- 130vs 6988% above
Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.
Dr. Cha'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 D. Cha treated 303 Medicare patients in 2024, average age 75
CMS counts 303 Medicare patients who saw Dr. Cha in 2024. The largest group is 75 to 84, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 57% are also on Medicaid. Their average risk score is 2.53, 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. Cha's median patient age at 68, with 54% women.
Dr. Cha's Medicare patients by age, 2024
Dr. Cha's Medicare patients by sex, 2024
- Women15350%
- Men15050%
Chronic conditions among Dr. Cha's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Chronic kidney disease50%
- Diabetes50%
- Ischemic heart disease49%
- Heart failure47%
- Mood disorders46%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cha's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John D. Cha wrote 345 Medicare Part D claims in 2024
In 2024, Dr. Cha wrote 345 Medicare Part D claims for 137 patients. 86% of them were for generic drugs. CMS names the drug for 130 of them, across 9 drugs with 11 or more claims each, at $698 in total drug cost. In 2023, CMS named 101 claims across 8 drugs.
Dr. Cha's Part D claims by kind of drug, 2024
- Generic296 claims86%
- Brand-name and other49 claims14%
Dr. Cha'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. Cha's Part D claims, 2024
- Opioids5%17 of 345 claims
- Antibiotics20%69 of 345 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: 1012024: 13029%
Drugs named by CMS: 9 in 2024, 8 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 D. Cha 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. Cha for performance year 2024, reported through an alternative payment model (APM).
Dr. Cha's MIPS scores, performance year 2024
- 100of 100Final score
- 86.3of 100Quality
- 100of 100Promoting Interoperability
- 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. John D. Cha received $144 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Cha from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 86% of the total. Abbvie Inc. paid the most, $124.
General payments to Dr. Cha by program year, 2022 to 2023
General payments to Dr. Cha by kind, 2022 to 2023
- Food and beverage$12486%
- Education$2014%
Companies that paid Dr. Cha the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John D. Cha graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Cha graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2015.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John D. Cha accepts plans from 13 insurance carriers
Dr. Cha is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO 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
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Cha accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. John D. Cha'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. John D. Cha
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 D. Cha's NPI number?
Dr. John D. Cha's NPI number is 1548616337. It was assigned on May 11, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. John D. Cha?
Dr. John D. Cha is a hospitalist in Carmichael, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. John D. Cha practice?
Dr. Cha practices at 6501 Coyle Ave, Carmichael, CA 95608. Dr. Cha's primary practice is Dignity Health - Mercy San Juan Medical Center in Carmichael, California, part of CommonSpirit Health. Dmand AI also links Dr. Cha to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. John D. Cha's office phone number?
The practice phone on file for Dr. Cha is (916) 537-5000.
What is Dr. John D. Cha's medical license number?
Dr. Cha's California license number on file is A163988.
Which hospitals is Dr. John D. Cha affiliated with?
Dr. Cha practices at Dignity Health - Mercy San Juan Medical Center in Carmichael, California. Dr. Cha is also affiliated with Dignity Health - Mercy General Hospital. Dmand AI links Dr. Cha to 1 more hospital.
What medical group is Dr. John D. Cha part of?
Dr. Cha is linked to Mercy Medical Group. Dmand AI links Dr. Cha to 1 more medical group.
Does Dr. John D. Cha accept Medicare?
Yes. CMS data shows Dr. Cha billed Medicare for 806 services in 2024.
What is Dr. John D. Cha's MIPS score?
Dr. Cha's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. John D. Cha see?
CMS counts 303 Medicare patients who saw Dr. Cha in 2024, with an average age of 75.
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Is Dr. John D. Cha board certified?
Yes. Dr. Cha is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John D. Cha bill to Medicare?
In 2024, Dr. Cha's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
Where did Dr. John D. Cha go to medical school?
Dr. Cha graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2015.
What drugs does Dr. John D. Cha prescribe most?
In 2024 Medicare Part D data, Dr. Cha's most prescribed drugs by claims were Pantoprazole Sodium, Prednisone and Amlodipine Besylate.
Has Dr. John D. Cha received payments from drug or device companies?
CMS Open Payments shows $144 in general payments to Dr. Cha from 2 companies from 2022 to 2023. The largest total came from Abbvie Inc.
How long has Dr. John D. Cha been practicing?
Dr. Cha graduated from medical school in 2015, 11 years ago.
What insurance does Dr. John D. Cha accept?
Dr. Cha is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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