Dr. Timothy A. Johnson, MD
- Medicare services, 2024
- 68
- Medicare patients, 2024
- 37
- Part D claims, 2024
- 196
- Hospital affiliations
- 1
- Industry payments
- $271
- Practice address
- 36475 Five Mile Road, Livonia, MI 48154
- Practice phone
- Call (734) 655-4800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnson's professional email, personal email and mobile number
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Dr. Timothy A. Johnson is an OB-GYN in Livonia, Michigan
Dr. Johnson practices at Trinity Health Livonia Hospital in Livonia, Michigan, part of Trinity Health.
Dr. Johnson's NPI, 1407830813, was assigned on November 30, 2005. Dr. Johnson graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990. Dr. Johnson holds Michigan license 4301056140.
- NPI
- 1407830813NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779662127
- NPI enumeration date
- November 30, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 655-4800
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy A. Johnson practices at Trinity Health Livonia Hospital in Livonia, Michigan
Dr. Johnson's primary practice is Trinity Health Livonia Hospital, at 36475 Five Mile Road, Livonia, MI 48154 in Wayne County. The practice phone is (734) 655-4800.
- Trinity Health Livonia Hospital36475 Five Mile Road, Livonia, MI 48154 · Wayne CountyPhone(734) 655-4800
Source: Dmand AI Affiliation Data
Dr. Timothy A. Johnson is affiliated with 1 site of care and 1 medical group
Dr. Johnson's primary practice is Trinity Health Livonia Hospital in Livonia, Michigan, part of Trinity Health. The medical group on file is Trinity Health IHA Medical Group, Obstetrics & Gynecology - Schoolcraft Campus.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Timothy A. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trinity Health Livonia Hospital | 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 Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Timothy A. Johnson is one of 1,457 OB-GYNs in Michigan
Obstetrics and gynecology is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. Johnson is licensed in Michigan.
Specialties and state licenses
- Obstetrics and gynecology, MichiganPrimary
OB-GYNs near Dr. Johnson
Counts of OB-GYNs 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. Timothy A. Johnson billed Medicare for 68 services in 2024
CMS data shows 68 Medicare services from Dr. Johnson across 4 procedure codes in 2024, for 37 Medicare patients. Medicare paid $2,610 for them. Every service was in an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 132024: 33154%
- Office and hospital visits
- 2023: 162024: 1813%
- Lab and pathology
- 2023: 182024: 176%
Dr. Johnson compared with the Michigan median for OB-GYNs, 2024
- Dr. Johnson
- Michigan median
- Medicare services
- 68vs 3784% above
- Medicare patients
- 37vs 3312% above
- Part D claims
- 127vs 383.3 times
Medians across 1,227 OB-GYNs in Michigan 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy A. Johnson treated 37 Medicare patients in 2024, average age 68
CMS counts 37 Medicare patients who saw Dr. Johnson in 2024. The largest group is 65 to 74, with 18 patients. 75% of them have high blood pressure, and 73% have high cholesterol. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnson's median patient age at 42, with 99% women.
Dr. Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis54%
- Osteoporosis32%
- Diabetes30%
- Mood disorders30%
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 42
Patient panel by sex, all payers
- Women99%
- Men1%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy A. Johnson wrote 196 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 196 Medicare Part D claims for 51 patients. 73% of them were for generic drugs. CMS names the drug for 127 of them, across 5 drugs with 11 or more claims each, at $17,221 in total drug cost. In 2023, CMS named 99 claims across 5 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic144 claims73%
- Brand-name52 claims27%
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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 992024: 12728%
Drugs named by CMS: 5 in 2024, 5 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
How Dr. Timothy A. Johnson takes part in Medicare
Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Timothy A. Johnson received $271 in industry payments from 2016 to 2024
CMS Open Payments shows 14 general payments to Dr. Johnson from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 97% of the total. Organon LLC paid the most, $72.
General payments to Dr. Johnson by program year, 2016 to 2024
General payments to Dr. Johnson by kind, 2016 to 2024
- Food and beverage$26297%
- Education$93%
Companies that paid Dr. Johnson the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy A. Johnson graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Johnson graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy A. 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 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) |
| 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. Timothy A. 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. Timothy A. Johnson's NPI number?
Dr. Timothy A. Johnson's NPI number is 1407830813. It was assigned on November 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy A. Johnson?
Dr. Timothy A. Johnson is an OB-GYN in Livonia, Michigan. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Timothy A. Johnson practice?
Dr. Johnson practices at 36475 Five Mile Road, Livonia, MI 48154. Dr. Johnson's primary practice is Trinity Health Livonia Hospital in Livonia, Michigan, part of Trinity Health.
What is Dr. Timothy A. Johnson's office phone number?
The practice phone on file for Dr. Johnson is (734) 655-4800.
What is Dr. Timothy A. Johnson's medical license number?
Dr. Johnson holds Michigan license 4301056140.
Which hospitals is Dr. Timothy A. Johnson affiliated with?
Dr. Johnson practices at Trinity Health Livonia Hospital in Livonia, Michigan.
What medical group is Dr. Timothy A. Johnson part of?
Dr. Johnson is linked to Trinity Health IHA Medical Group, Obstetrics & Gynecology - Schoolcraft Campus.
Does Dr. Timothy A. Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 68 services in 2024, and Dr. Johnson accepts Medicare assignment.
How many Medicare patients does Dr. Timothy A. Johnson see?
CMS counts 37 Medicare patients who saw Dr. Johnson in 2024, with an average age of 68.
What services does Dr. Timothy A. Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and lab and pathology test (82270).
Show 4 more questionsShow fewer questions
Where did Dr. Timothy A. Johnson go to medical school?
Dr. Johnson graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1990.
What drugs does Dr. Timothy A. Johnson prescribe most?
In 2024 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Estradiol, Clotrimazole-Betamethasone and Estring.
Has Dr. Timothy A. Johnson received payments from drug or device companies?
CMS Open Payments shows $271 in general payments to Dr. Johnson from 7 companies from 2016 to 2024. The largest total came from Organon LLC.
How long has Dr. Timothy A. Johnson been practicing?
Dr. Johnson graduated from medical school in 1990, 36 years ago.
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