Dr. Walter Kip Johnson, MD
- Medicare services, 2024
- 93
- Medicare patients, 2024
- 79
- Part D claims, 2024
- 4,985
- Hospital affiliations
- 2
- Industry payments
- $348
- Practice address
- 305 Preston Ave, Ione, CA 95640
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mact Medical, Ione - HOPD
Acute Care Hospital outpatient department · Ione, California
Find Dr. Johnson'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. Walter Kip Johnson is a general practice physician in Ione, California
Dr. Johnson practices at Mact Medical, Ione - HOPD in Ione, California.
Dr. Johnson's NPI, 1780919282, was assigned on October 16, 2009. Dr. Johnson graduated from David Geffen School of Medicine at UCLA in 1975. Dr. Johnson's California license number on file is G32232.
- NPI
- 1780919282NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557401593
- NPI enumeration date
- October 16, 2009
- NPI status
- Active
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Walter Kip Johnson practices at Mact Medical, Ione - HOPD in Ione, California
Dr. Johnson's primary practice is Mact Medical, Ione - HOPD, at 305 Preston Ave, Ione, CA 95640.
- Mact Medical, Ione - HOPD305 Preston Ave, Ione, CA 95640
Source: Dmand AI Affiliation Data
Dr. Walter Kip Johnson is affiliated with 6 sites of care and 1 medical group
Dr. Johnson's primary practice is Mact Medical, Ione - HOPD in Ione, California. Dr. Johnson is also affiliated with Sutter Medical Center, Sacramento. Dmand AI also links Dr. Johnson to 1 more hospital, 3 home health agencies and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Walter Kip Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mact Medical, Ione - HOPD | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Walter Kip Johnson is one of 1,526 general practice physicians in California
General practice is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Johnson has a license on file in California.
Specialties and state licenses
- General practice, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gallbladder or bile duct inflammation, acute kidney failure, acute mini-stroke (TIA), acute sinusitis, acute skin infection, ADHD and anxiety among the conditions Dr. Johnson treats.
General practice physicians near Dr. Johnson
Counts of general practice 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. Walter Kip Johnson billed Medicare for 93 services in 2024
CMS data shows 93 Medicare services from Dr. Johnson across 2 procedure codes in 2024, for 79 Medicare patients. Medicare paid $1,209 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2021 to 2024
- 2021
- 2024
- Lab and pathology
- 2021: 192024: 75295%
- Surgery
- 2021: 132024: 1838%
Dr. Johnson compared with the California median for general practice physicians, 2024
- Dr. Johnson
- California median
- Medicare services
- 93vs 26265% below
- Medicare patients
- 79vs 13642% below
- Part D claims
- 4,430vs 19223.1 times
Medians across 1,114 general practice physicians in California with Dmand AI profiles that report each measure.
Dr. Johnson'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Johnson and other general practice physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Walter Kip Johnson treated 79 Medicare patients in 2024, average age 71
CMS counts 79 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 44 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 59, with 56% women.
Dr. Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnson's Medicare patients by sex, 2024
- Women4152%
- Men3848%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes73%
- Arthritis38%
- Chronic kidney disease29%
- Anxiety22%
- Depression18%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Walter Kip Johnson wrote 4,985 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 4,985 Medicare Part D claims for 309 patients. 89% of them were for generic drugs. CMS names the drug for 4,430 of them, across 96 drugs with 11 or more claims each, at $188,433 in total drug cost. In 2023, CMS named 4,740 claims across 97 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic4,436 claims89%
- Brand-name501 claims10%
- Other48 claims1%
Dr. Johnson'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. Johnson's Part D claims, 2024
- Opioids3%162 of 4,985 claims
- Antibiotics2%95 of 4,985 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: 4,7402024: 4,4307%
Drugs named by CMS: 96 in 2024, 97 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
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Dr. Walter Kip Johnson received $348 in industry payments from 2020 to 2025
CMS Open Payments shows 7 general payments to Dr. Johnson from 6 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $149.
General payments to Dr. Johnson by program year, 2020 to 2025
Companies that paid Dr. Johnson the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Walter Kip Johnson graduated from David Geffen School of Medicine at UCLA
Dr. Johnson graduated from David Geffen School of Medicine at UCLA in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Walter Kip Johnson accepts plans from 8 insurance carriers
Dr. Johnson is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- Regence Health Plans
- CMS Medicare
Plan types Dr. Johnson accepts, by number of carriers
- Medicare8
- PPO7
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Walter Kip Johnson'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 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) |
| 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. Walter Kip Johnson
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. Walter Kip Johnson's NPI number?
Dr. Walter Kip Johnson's NPI number is 1780919282. It was assigned on October 16, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Walter Kip Johnson?
Dr. Walter Kip Johnson is a general practice physician in Ione, California. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Walter Kip Johnson practice?
Dr. Johnson practices at 305 Preston Ave, Ione, CA 95640. Dr. Johnson's primary practice is Mact Medical, Ione - HOPD in Ione, California. Dmand AI also links Dr. Johnson to 1 hospital, 3 home health agencies and 1 medical group.
What is Dr. Walter Kip Johnson's medical license number?
Dr. Johnson's California license number on file is G32232.
Which hospitals is Dr. Walter Kip Johnson affiliated with?
Dr. Johnson is affiliated with Sutter Medical Center, Sacramento. Dmand AI links Dr. Johnson to 1 more hospital.
Does Dr. Walter Kip Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 93 services in 2024.
How many Medicare patients does Dr. Walter Kip Johnson see?
CMS counts 79 Medicare patients who saw Dr. Johnson in 2024, with an average age of 71.
What services does Dr. Walter Kip Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were lab and pathology test (83036) and surgery: skin and soft tissue (11721).
Where did Dr. Walter Kip Johnson go to medical school?
Dr. Johnson graduated from David Geffen School of Medicine at UCLA in 1975.
What drugs does Dr. Walter Kip Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Amlodipine Besylate.
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Has Dr. Walter Kip Johnson received payments from drug or device companies?
CMS Open Payments shows $348 in general payments to Dr. Johnson from 6 companies from 2020 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Walter Kip Johnson been practicing?
Dr. Johnson graduated from medical school in 1975, 51 years ago.
What insurance does Dr. Walter Kip Johnson accept?
Dr. Johnson is in network with 8 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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