John Obinna Johnson
- Medicare services, 2024
- 250
- Medicare patients, 2024
- 56
- Part D claims, 2024
- 932
- Hospital affiliations
- 2
- Industry payments
- $605
- Practice address
- 111 W High St, Elkton, MD 21921
- Practice phone
- Call (410) 398-3868
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
ChristianaCare Primary Care - Elkton
Elkton, Maryland
Find John 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.
John Obinna Johnson is a psychiatrist in Elkton, Maryland
John Johnson practices at ChristianaCare Primary Care - Elkton in Elkton, Maryland.
John Johnson's NPI, 1174180624, was assigned on May 21, 2019. John Johnson graduated from Howard University College of Medicine in 2017. John Johnson holds Delaware license C1-0025786.
- NPI
- 1174180624NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517322969
- NPI enumeration date
- May 21, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (410) 398-3868
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John Obinna Johnson practices at ChristianaCare Primary Care - Elkton in Elkton, Maryland
John Johnson's primary practice is ChristianaCare Primary Care - Elkton, at 111 W High St, Elkton, MD 21921 in Cecil County. The practice phone is (410) 398-3868.
- ChristianaCare Primary Care - Elkton111 W High St, Elkton, MD 21921 · Cecil CountyPhone(410) 398-3868
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John Obinna Johnson is affiliated with 4 sites of care and 4 medical groups
John Johnson's primary practice is ChristianaCare Primary Care - Elkton in Elkton, Maryland. John Johnson is also affiliated with ChristianaCare Union Hospital. The medical group on file is ChristianaCare. Dmand AI also links John Johnson to 1 more hospital, 3 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Obinna Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Johnson practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ChristianaCare Primary Care - Elkton | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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John Obinna Johnson is one of 901 psychiatrists in Maryland
Psychiatry is John Johnson's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. John Johnson is licensed in Delaware.
Specialties and state licenses
- Psychiatry, DelawarePrimary
Psychiatrists near John Johnson
Counts of psychiatrists 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
John Obinna Johnson billed Medicare for 250 services in 2024
CMS data shows 250 Medicare services from John Johnson across 4 procedure codes in 2024, for 56 Medicare patients. Medicare paid $16,323 for them.
John Johnson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 122024: 1871458%
- Tests and treatments
- 2023: 282024: 63125%
Where John Johnson's Medicare services took place, 2024
- In an office21385%
- In a facility3715%
John Johnson compared with the Maryland median for psychiatrists, 2024
- John Johnson
- Maryland median
- Medicare services
- 250vs 18833% above
- Medicare patients
- 56vs 536% above
- Part D claims
- 760vs 1166.6 times
Medians across 1,014 psychiatrists in Maryland with Dmand AI profiles that report each measure.
John 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
John Obinna Johnson treated 56 Medicare patients in 2024, average age 64
CMS counts 56 Medicare patients who saw John Johnson in 2024. The largest group is under 65, with 24 patients. 75% of them have anxiety, and 75% have high blood pressure. 36% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts John Johnson's median patient age at 44, with 65% women.
John Johnson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
John Johnson's Medicare patients by sex, 2024
- Women4173%
- Men1527%
Chronic conditions among John Johnson's Medicare patients, 2024
- Anxiety75%
- High blood pressure75%
- High cholesterol75%
- Mood disorders75%
- Depression71%
- Arthritis48%
- Bipolar disorder41%
- Diabetes41%
Share of Medicare patients with each condition. A patient can have several.
John 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 44
Patient panel by sex, all payers
- Women65%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
John Obinna Johnson wrote 932 Medicare Part D claims in 2024
In 2024, John Johnson wrote 932 Medicare Part D claims for 107 patients. 94% of them were for generic drugs. CMS names the drug for 760 of them, across 23 drugs with 11 or more claims each, at $17,542 in total drug cost. In 2023, CMS named 167 claims across 7 drugs.
John Johnson's Part D claims by kind of drug, 2024
- Generic876 claims94%
- Brand-name56 claims6%
John 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 John Johnson's Part D claims, 2024
- Antipsychotics, patients 65 and over4%40 of 932 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: 1672024: 760355%
Drugs named by CMS: 23 in 2024, 7 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
John Obinna Johnson offers telehealth to Medicare patients
John Johnson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists John Johnson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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John Obinna Johnson received $605 in industry payments from 2021 to 2025
CMS Open Payments shows 19 general payments to John Johnson from 7 drug and device companies from 2021 to 2025. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $304.
General payments to John Johnson by program year, 2021 to 2025
Companies that paid John Johnson the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John Obinna Johnson graduated from Howard University College of Medicine
John Johnson graduated from Howard University College of Medicine in 2017.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for John Obinna 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 John Obinna 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 John Obinna Johnson's NPI number?
John Obinna Johnson's NPI number is 1174180624. It was assigned on May 21, 2019, and it is active in the NPI Registry.
What does John Obinna Johnson specialize in?
John Obinna Johnson is a psychiatrist in Elkton, Maryland. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does John Obinna Johnson practice?
John Johnson practices at 111 W High St, Elkton, MD 21921. John Johnson's primary practice is ChristianaCare Primary Care - Elkton in Elkton, Maryland. Dmand AI also links John Johnson to 1 hospital, 3 medical groups and 1 group practice or clinic.
What is John Obinna Johnson's office phone number?
The practice phone on file for John Johnson is (410) 398-3868.
What is John Obinna Johnson's medical license number?
John Johnson holds Delaware license C1-0025786.
Which hospitals is John Obinna Johnson affiliated with?
John Johnson is affiliated with ChristianaCare Union Hospital. Dmand AI links John Johnson to 1 more hospital.
What medical group is John Obinna Johnson part of?
John Johnson is linked to ChristianaCare. Dmand AI links John Johnson to 3 more medical groups.
Does John Obinna Johnson accept Medicare?
Yes. CMS data shows John Johnson billed Medicare for 250 services in 2024, and John Johnson accepts Medicare assignment.
Does John Obinna Johnson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists John Johnson as offering telehealth services.
How many Medicare patients does John Obinna Johnson see?
CMS counts 56 Medicare patients who saw John Johnson in 2024, with an average age of 64.
Show 5 more questionsShow fewer questions
What services does John Obinna Johnson bill to Medicare?
In 2024, John Johnson's most billed Medicare services were office visit, established patient (99214), health assessment (96127) and hospital inpatient care (99232).
Where did John Obinna Johnson go to medical school?
John Johnson graduated from Howard University College of Medicine in 2017.
What drugs does John Obinna Johnson prescribe most?
In 2024 Medicare Part D data, John Johnson's most prescribed drugs by claims were Alprazolam, Clonazepam and Duloxetine HCl.
Has John Obinna Johnson received payments from drug or device companies?
CMS Open Payments shows $605 in general payments to John Johnson from 7 companies from 2021 to 2025. The largest total came from Neurocrine BioSciences, Inc.
How long has John Obinna Johnson been practicing?
John Johnson graduated from medical school in 2017, 9 years ago.
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