Dr. Michael David Johnston, MD
- Medicare services, 2024
- 1,662
- Medicare patients, 2024
- 669
- Part D claims, 2024
- 5,435
- MIPS score, 2024
- 77
- Hospital affiliations
- 3
- Practice address
- 2767 Olive Highway, Oroville, CA 95966
- Practice phone
- Call (530) 533-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnston's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael David Johnston is a cardiologist in Oroville, California
Dr. Johnston practices at Oroville Hospital in Oroville, California, part of Oro Hospital.
Dr. Johnston's NPI, 1417160771, was assigned on May 7, 2007. Dr. Johnston graduated from Loma Linda University School of Medicine in 2006. Dr. Johnston holds California license A125993.
- NPI
- 1417160771NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628245651
- NPI enumeration date
- May 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (530) 533-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael David Johnston practices at Oroville Hospital in Oroville, California
Dr. Johnston's primary practice is Oroville Hospital, at 2767 Olive Highway, Oroville, CA 95966 in Butte County. The practice phone is (530) 533-8500.
- Oroville Hospital2767 Olive Highway, Oroville, CA 95966 · Butte CountyPhone(530) 533-8500
Source: Dmand AI Affiliation Data
Dr. Michael David Johnston is affiliated with 3 sites of care and 2 medical groups
Dr. Johnston's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dr. Johnston is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is Oro Health Professional. Dmand AI also links Dr. Johnston to 1 more hospital 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. Michael David Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oroville Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Oro Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael David Johnston is one of 2,375 cardiologists in California
Cardiovascular disease is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Johnston is licensed in California.
Specialties and state licenses
- Cardiovascular disease, CaliforniaPrimary
Cardiologists near Dr. Johnston
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. Michael David Johnston billed Medicare for 1,662 services in 2024
CMS data shows 1,662 Medicare services from Dr. Johnston across 15 procedure codes in 2024, for 669 Medicare patients. Medicare paid $122,625 for them.
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,4812024: 1,4552%
- Tests and treatments
- 2023: 2282024: 2079%
Where Dr. Johnston's Medicare services took place, 2024
- In an office1,28277%
- In a facility38023%
Dr. Johnston compared with the California median for cardiologists, 2024
- Dr. Johnston
- California median
- Medicare services
- 1,662vs 1,5607% above
- Medicare patients
- 669vs 644Close to median
- Part D claims
- 5,149vs 1,4103.7 times
Medians across 2,237 cardiologists in California with Dmand AI profiles that report each measure.
Dr. Johnston'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.
Need commercial claims for Dr. Johnston?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnston and other cardiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael David Johnston treated 669 Medicare patients in 2024, average age 76
CMS counts 669 Medicare patients who saw Dr. Johnston in 2024. The largest group is 65 to 74, with 261 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.61, 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. Johnston's median patient age at 73, with 49% women.
Dr. Johnston's Medicare patients by age, 2024
Dr. Johnston's Medicare patients by sex, 2024
- Women33951%
- Men33049%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Ischemic heart disease43%
- Diabetes40%
- Atrial fibrillation38%
- Heart failure36%
- COPD32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael David Johnston wrote 5,435 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 5,435 Medicare Part D claims for 574 patients. 80% of them were for generic drugs. CMS names the drug for 5,149 of them, across 50 drugs with 11 or more claims each, at $763,107 in total drug cost. In 2023, CMS named 4,443 claims across 55 drugs.
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic4,337 claims80%
- Brand-name1,098 claims20%
Dr. Johnston'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,4432024: 5,14916%
Drugs named by CMS: 50 in 2024, 55 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. Michael David Johnston scored 77 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 77 out of 100 for Dr. Johnston for performance year 2024, reported as part of a group. Dr. Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Johnston as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Johnston's MIPS scores, performance year 2024
- 77of 100Final score
- 36.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael David Johnston received $8,429 in industry payments from 2016 to 2025
CMS Open Payments shows 216 general payments to Dr. Johnston from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 72% of the total. Abbott Laboratories paid the most, $5,438.
General payments to Dr. Johnston by program year, 2016 to 2025
General payments to Dr. Johnston by kind, 2016 to 2025
- Food and beverage$6,08372%
- Travel and lodging$2,24927%
- Education$971%
Companies that paid Dr. Johnston 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. Michael David Johnston graduated from Loma Linda University School of Medicine
Dr. Johnston graduated from Loma Linda University School of Medicine in 2006.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael David Johnston'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| 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. Michael David Johnston
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. Michael David Johnston's NPI number?
Dr. Michael David Johnston's NPI number is 1417160771. It was assigned on May 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael David Johnston?
Dr. Michael David Johnston is a cardiologist in Oroville, California. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Michael David Johnston practice?
Dr. Johnston practices at 2767 Olive Highway, Oroville, CA 95966. Dr. Johnston's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dmand AI also links Dr. Johnston to 1 hospital and 1 medical group.
What is Dr. Michael David Johnston's office phone number?
The practice phone on file for Dr. Johnston is (530) 533-8500.
What is Dr. Michael David Johnston's medical license number?
Dr. Johnston holds California license A125993.
Which hospitals is Dr. Michael David Johnston affiliated with?
Dr. Johnston practices at Oroville Hospital in Oroville, California. Dr. Johnston is also affiliated with Sutter Medical Center, Sacramento. Dmand AI links Dr. Johnston to 1 more hospital.
What medical group is Dr. Michael David Johnston part of?
Dr. Johnston is linked to Oro Health Professional. Dmand AI links Dr. Johnston to 1 more medical group.
Does Dr. Michael David Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 1,662 services in 2024, and Dr. Johnston accepts Medicare assignment.
Does Dr. Michael David Johnston offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Johnston as offering telehealth services.
What is Dr. Michael David Johnston's MIPS score?
Dr. Johnston's MIPS final score for performance year 2024 is 77 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Michael David Johnston see?
CMS counts 669 Medicare patients who saw Dr. Johnston in 2024, with an average age of 76.
What services does Dr. Michael David Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99222) and office visit, established patient (99214).
Where did Dr. Michael David Johnston go to medical school?
Dr. Johnston graduated from Loma Linda University School of Medicine in 2006.
What drugs does Dr. Michael David Johnston prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Metoprolol Succinate.
Has Dr. Michael David Johnston received payments from drug or device companies?
CMS Open Payments shows $8,429 in general payments to Dr. Johnston from 17 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Michael David Johnston been practicing?
Dr. Johnston graduated from medical school in 2006, 20 years ago.
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