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Dr. Morgan Johnson Harris, MD
NPI1801053574PAC ID6608024609
- Medicare services, 2024
- 497
- Medicare patients, 2024
- 309
- Part D claims, 2024
- 890
- Publications
- 9
- Hospital affiliations
- 1
- Practice address
- 1000 Trancas St, Napa, CA 94558
- Practice phone
- Call (707) 252-4411
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Harris' professional email, personal email and mobile number
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Dr. Morgan Johnson Harris is a neurologist in Napa, California
Dr. Harris practices at Providence Queen of the Valley Medical Center in Napa, California, part of Providence Health & Services.
Dr. Harris' NPI, 1801053574, was assigned on May 20, 2008. Dr. Harris graduated from Howard University College Of Medicine in 2007. Dr. Harris' Maryland license number on file is D78424.
NPI and contact details
- NPI
- 1801053574NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608024609
- NPI enumeration date
- May 20, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 252-4411
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Morgan Johnson Harris practices at Providence Queen of the Valley Medical Center in Napa, California
Dr. Harris' primary practice is Providence Queen of the Valley Medical Center, at 1000 Trancas St, Napa, CA 94558 in Napa County. The practice phone is (707) 252-4411.
- Providence Queen of the Valley Medical Center1000 Trancas St, Napa, CA 94558 · Napa CountyPhone(707) 252-4411
Source: Dmand AI Affiliation Data
Dr. Morgan Johnson Harris is affiliated with 1 site of care and 1 medical group
Dr. Harris' primary practice is Providence Queen of the Valley Medical Center in Napa, California, part of Providence Health & Services. The medical group on file is St. Jude Heritage Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Morgan Johnson Harris' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harris practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Queen of the Valley Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Morgan Johnson Harris is one of 2,207 neurologists in California
Neurology is Dr. Harris' primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Harris is board certified in neurology by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Harris' licenses on file in 5 states: Maryland, California, Florida, District of Columbia and Illinois.
Specialties and state licenses
- Neurology, MarylandPrimary
- California license
- Florida license
- District of Columbia license
- Illinois license
Clinical focus
Dmand AI lists acute mini-stroke (TIA), alzheimer's disease, carpal tunnel syndrome, cerebrovascular disease, encephalopathy, epilepsy, essential tremor and fibromyalgia and chronic pain among the conditions Dr. Harris treats.
Neurologists near Dr. Harris
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
2,207neurologists in California
4neurologists in Napa
4neurologists at Providence Queen of the Valley Medical CenterSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Morgan Johnson Harris billed Medicare for 497 services in 2024
CMS data shows 497 Medicare services from Dr. Harris across 6 procedure codes in 2024, for 309 Medicare patients. Medicare paid $50,634 for them. Every service was in an office.
Medicare services, 2024497
Medicare patients309
Paid by Medicare$50,634
Procedure codes6
Dr. Harris' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5512024: 43022%
- Other services
- 2023: 02024: 49
- Tests and treatments
- 2023: 1462024: 1888%
Dr. Harris compared with the California median for neurologists, 2024
- Dr. Harris
- California median
- Medicare services
- 497vs 40423% above
- Medicare patients
- 309vs 19063% above
- Part D claims
- 794vs 3242.5 times
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Harris' 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. Morgan Johnson Harris treated 309 Medicare patients in 2024, average age 76
CMS counts 309 Medicare patients who saw Dr. Harris in 2024. The largest group is 75 to 84, with 135 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Harris' median patient age at 73, with 63% women.
Medicare patients, 2024309
Average age76
Average risk score1.41
Also on Medicaid33%
Dr. Harris' Medicare patients by age, 2024
Dr. Harris' Medicare patients by sex, 2024
- Women18159%
- Men12841%
Chronic conditions among Dr. Harris' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes29%
- Ischemic heart disease29%
- Mood disorders28%
- Anxiety27%
- Alzheimer's and dementia26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harris' 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
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Morgan Johnson Harris wrote 890 Medicare Part D claims in 2024
In 2024, Dr. Harris wrote 890 Medicare Part D claims for 163 patients. 93% of them were for generic drugs. CMS names the drug for 794 of them, across 23 drugs with 11 or more claims each, at $120,817 in total drug cost. In 2023, CMS named 809 claims across 19 drugs.
Part D claims, 2024890
Drugs named by CMS23
Total drug cost$120,817
Part D patients163
Dr. Harris' Part D claims by kind of drug, 2024
- Generic825 claims93%
- Brand-name65 claims7%
Dr. Harris' 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. Harris' Part D claims, 2024
- Antipsychotics, patients 65 and over2%16 of 890 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: 8092024: 7942%
Drugs named by CMS: 23 in 2024, 19 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. Morgan Johnson Harris offers telehealth to Medicare patients
Dr. Harris accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Harris as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Morgan Johnson Harris has 9 publications on record
Dmand AI links 9 papers to Dr. Harris. The most frequent topics are Kidney, Culture Media and Culture Techniques. Dr. Harris has published most often in J Cell Comp Physiol.
Papers9
Topics Dr. Harris writes about most
- Kidney
- Culture Media
- Culture Techniques
- Drug Resistance
- Growth
- Swine
Recent publications by Dr. Harris
Somat Cell Mol Genet
Blotting, NorthernBlotting, SouthernBromodeoxyuridine
Alkaline PhosphataseCitric Acid CycleClone Cells
Evolution of growth responses to spleen protein in cultures of pig kidney cells (opens in a new tab)
Z Zellforsch Mikrosk Anat
Culture MediaCulture TechniquesKidney
See who Dr. Harris researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Harris works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Morgan Johnson Harris received $229 in industry payments from 2016 to 2017
CMS Open Payments shows 14 general payments to Dr. Harris from 5 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $109.
General payments to Dr. Harris by program year, 2016 to 2017
Companies that paid Dr. Harris the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Morgan Johnson Harris graduated from Howard University College Of Medicine
Dr. Harris graduated from Howard University College Of Medicine in 2007.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. Morgan Johnson Harris accepts plans from 8 insurance carriers
Dr. Harris is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Harris accepts, by number of carriers
- Medicare6
- PPO6
- HMO3
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Morgan Johnson Harris'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Morgan Johnson Harris
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. Morgan Johnson Harris' NPI number?
Dr. Morgan Johnson Harris' NPI number is 1801053574. It was assigned on May 20, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Morgan Johnson Harris?
Dr. Morgan Johnson Harris is a neurologist in Napa, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Morgan Johnson Harris practice?
Dr. Harris practices at 1000 Trancas St, Napa, CA 94558. Dr. Harris' primary practice is Providence Queen of the Valley Medical Center in Napa, California, part of Providence Health & Services.
What is Dr. Morgan Johnson Harris' office phone number?
The practice phone on file for Dr. Harris is (707) 252-4411.
What is Dr. Morgan Johnson Harris' medical license number?
Dr. Harris' Maryland license number on file is D78424, one of the licenses on file in 5 states.
Which states has Dr. Morgan Johnson Harris been licensed in?
Dmand AI has state licenses on file for Dr. Harris in Maryland (2014 to 2018), California (2018 to 2026), Florida (2012 to 2016), District of Columbia (2007 to 2013) and Illinois (2008 to 2011).
Which hospitals is Dr. Morgan Johnson Harris affiliated with?
Dr. Harris practices at Providence Queen of the Valley Medical Center in Napa, California.
What medical group is Dr. Morgan Johnson Harris part of?
Dr. Harris is linked to St. Jude Heritage Medical Group.
Does Dr. Morgan Johnson Harris accept Medicare?
Yes. CMS data shows Dr. Harris billed Medicare for 497 services in 2024, and Dr. Harris accepts Medicare assignment.
Does Dr. Morgan Johnson Harris offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Harris as offering telehealth services.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Morgan Johnson Harris see?
CMS counts 309 Medicare patients who saw Dr. Harris in 2024, with an average age of 76.
Is Dr. Morgan Johnson Harris board certified?
Yes. Dr. Harris is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Morgan Johnson Harris bill to Medicare?
In 2024, Dr. Harris' most billed Medicare services were office visit, established patient (99214), office visit, new patient (99205) and office visit, established patient (99215).
Where did Dr. Morgan Johnson Harris go to medical school?
Dr. Harris graduated from Howard University College Of Medicine in 2007.
What drugs does Dr. Morgan Johnson Harris prescribe most?
In 2024 Medicare Part D data, Dr. Harris' most prescribed drugs by claims were Donepezil HCl, Memantine HCl and Carbidopa-Levodopa.
Has Dr. Morgan Johnson Harris received payments from drug or device companies?
CMS Open Payments shows $229 in general payments to Dr. Harris from 5 companies from 2016 to 2017. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Morgan Johnson Harris been practicing?
Dr. Harris graduated from medical school in 2007, 19 years ago.
Does Dr. Morgan Johnson Harris do research?
Dmand AI links 9 publications to Dr. Harris.
What insurance does Dr. Morgan Johnson Harris accept?
Dr. Harris is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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