Dr. Spencer Johnson, DO
- Medicare services, 2024
- 358
- Medicare patients, 2024
- 249
- Part D claims, 2024
- 59
- MIPS score, 2024
- 99
- Hospital affiliations
- 3
- Practice address
- 718 N Macomb St, Monroe, MI 48162
- Practice phone
- Call (734) 240-8400
- 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. Spencer Johnson is an emergency medicine physician in Monroe, Michigan
Dr. Johnson practices at ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System.
Dr. Johnson's NPI, 1306042544, was assigned on June 25, 2007. Dr. Johnson graduated from Ohio University, College of Osteopathic Medicine in 2004. Dr. Johnson holds Ohio license 34-008902.
- NPI
- 1306042544NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507953650
- NPI enumeration date
- June 25, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 240-8400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Spencer Johnson practices at ProMedica Monroe Regional Hospital in Monroe, Michigan
Dr. Johnson's primary practice is ProMedica Monroe Regional Hospital, at 718 N Macomb St, Monroe, MI 48162 in Monroe County. The practice phone is (734) 240-8400.
- ProMedica Monroe Regional Hospital718 N Macomb St, Monroe, MI 48162 · Monroe CountyPhone(734) 240-8400
Source: Dmand AI Affiliation Data
Dr. Spencer Johnson is affiliated with 3 sites of care and 6 medical groups
Dr. Johnson's primary practice is ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System. Dr. Johnson is also affiliated with ProMedica Toledo Hospital. The medical group on file is ProMedica Physicians. Dmand AI also links Dr. Johnson to 1 more hospital and 5 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. Spencer Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ProMedica Monroe Regional Hospital | Available with a free account |
| +2 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Spencer Johnson is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Dr. Johnson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Johnson is licensed in Ohio.
Specialties and state licenses
- Emergency medicine, OhioPrimary
Emergency medicine physicians near Dr. Johnson
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. Spencer Johnson billed Medicare for 358 services in 2024
CMS data shows 358 Medicare services from Dr. Johnson across 4 procedure codes in 2024, for 249 Medicare patients. Medicare paid $32,378 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2772024: 2519%
- Tests and treatments
- 2023: 1122024: 1074%
Dr. Johnson compared with the Michigan median for emergency medicine physicians, 2024
- Dr. Johnson
- Michigan median
- Medicare services
- 358vs 23453% above
- Medicare patients
- 249vs 21416% above
- Part D claims
- 23vs 4650% below
Medians across 1,937 emergency medicine physicians 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. Spencer Johnson treated 249 Medicare patients in 2024, average age 73
CMS counts 249 Medicare patients who saw Dr. Johnson in 2024. The largest group is 75 to 84, with 79 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.34, 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. Johnson's median patient age at 57, with 60% women.
Dr. Johnson's Medicare patients by age, 2024
Dr. Johnson's Medicare patients by sex, 2024
- Women13956%
- Men11044%
Chronic conditions among Dr. Johnson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis54%
- Ischemic heart disease48%
- Chronic kidney disease45%
- Mood disorders45%
- Diabetes43%
- Anxiety41%
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 57
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Spencer Johnson wrote 59 Medicare Part D claims in 2024
In 2024, Dr. Johnson wrote 59 Medicare Part D claims for 49 patients. 93% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $154 in total drug cost. In 2017, CMS named 57 claims across 4 drugs.
Dr. Johnson's Part D claims by kind of drug, 2024
- Generic55 claims93%
- Brand-name and other4 claims7%
Dr. Johnson's most prescribed drugs by claims, 2018
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
- Antibiotics44%26 of 59 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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 572018: 2360%
Drugs named by CMS: 2 in 2018, 4 in 2017.
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. Spencer Johnson scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Johnson for performance year 2024, reported as part of a group. Dr. Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Johnson's MIPS scores, performance year 2024
- 99of 100Final score
- 96.5of 100Quality
- 40of 100Improvement Activities
- 90of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Spencer Johnson received $126 in industry payments from 2016 to 2022
CMS Open Payments shows 8 general payments to Dr. Johnson from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Allergan Inc. paid the most, $99.
General payments to Dr. Johnson by program year, 2016 to 2022
Companies that paid Dr. Johnson the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Spencer Johnson graduated from Ohio University, College of Osteopathic Medicine
Dr. Johnson graduated from Ohio University, College of Osteopathic Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Spencer 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)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 |
| 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. Spencer 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. Spencer Johnson's NPI number?
Dr. Spencer Johnson's NPI number is 1306042544. It was assigned on June 25, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Spencer Johnson?
Dr. Spencer Johnson is an emergency medicine physician in Monroe, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Spencer Johnson practice?
Dr. Johnson practices at 718 N Macomb St, Monroe, MI 48162. Dr. Johnson's primary practice is ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System. Dmand AI also links Dr. Johnson to 1 hospital and 5 medical groups.
What is Dr. Spencer Johnson's office phone number?
The practice phone on file for Dr. Johnson is (734) 240-8400.
What is Dr. Spencer Johnson's medical license number?
Dr. Johnson holds Ohio license 34-008902.
Which hospitals is Dr. Spencer Johnson affiliated with?
Dr. Johnson practices at ProMedica Monroe Regional Hospital in Monroe, Michigan. Dr. Johnson is also affiliated with ProMedica Toledo Hospital. Dmand AI links Dr. Johnson to 1 more hospital.
What medical group is Dr. Spencer Johnson part of?
Dr. Johnson is linked to ProMedica Physicians. Dmand AI links Dr. Johnson to 5 more medical groups.
Does Dr. Spencer Johnson accept Medicare?
Yes. CMS data shows Dr. Johnson billed Medicare for 358 services in 2024, and Dr. Johnson accepts Medicare assignment.
What is Dr. Spencer Johnson's MIPS score?
Dr. Johnson's MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
How many Medicare patients does Dr. Spencer Johnson see?
CMS counts 249 Medicare patients who saw Dr. Johnson in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Spencer Johnson bill to Medicare?
In 2024, Dr. Johnson's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Spencer Johnson go to medical school?
Dr. Johnson graduated from Ohio University, College of Osteopathic Medicine in 2004.
What drugs does Dr. Spencer Johnson prescribe most?
In 2018 Medicare Part D data, Dr. Johnson's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. Spencer Johnson received payments from drug or device companies?
CMS Open Payments shows $126 in general payments to Dr. Johnson from 3 companies from 2016 to 2022. The largest total came from Allergan Inc.
How long has Dr. Spencer Johnson been practicing?
Dr. Johnson graduated from medical school in 2004, 22 years ago.
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