J Clin Gastroenterol
Dr. Jacob Harrison Alexander, MD
- Medicare services, 2024
- 709
- Medicare patients, 2024
- 376
- Part D claims, 2024
- 343
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 2000 Sutter Place, Davis, CA 95616
- Practice phone
- Call (530) 757-5108
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Alexander'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. Jacob Harrison Alexander is an internist in Davis, California
Dr. Alexander practices at Sutter Davis Hospital in Davis, California, part of Sutter Health.
Dr. Alexander's NPI, 1104213081, was assigned on April 19, 2015. Dr. Alexander graduated from George Washington University School of Medicine and Health Sciences in 2015. Dr. Alexander holds California license A144263.
- NPI
- 1104213081NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042561169
- NPI enumeration date
- April 19, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 757-5108
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jacob Harrison Alexander practices at Sutter Davis Hospital in Davis, California
Dr. Alexander's primary practice is Sutter Davis Hospital, at 2000 Sutter Place, Davis, CA 95616 in Yolo County. The practice phone is (530) 757-5108.
- Sutter Davis Hospital2000 Sutter Place, Davis, CA 95616 · Yolo CountyPhone(530) 757-5108
Source: Dmand AI Affiliation Data
Dr. Jacob Harrison Alexander is affiliated with 3 sites of care and 1 medical group
Dr. Alexander's primary practice is Sutter Davis Hospital in Davis, California, part of Sutter Health. Dr. Alexander is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is SGMF Radiology. Dmand AI also links Dr. Alexander to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jacob Harrison Alexander's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Alexander practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Davis Hospital | Available with a free account |
| +2 more affiliated sites | 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 Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jacob Harrison Alexander is one of 16,751 internists in California
Internal medicine is Dr. Alexander's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Alexander is board certified in internal medicine by the American Board of Internal Medicine. Dr. Alexander is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, atrial fibrillation and flutter, cellulitis, chest trauma, chronic hypertension, chronic kidney disease and congestive heart failure among the conditions Dr. Alexander treats.
Internists near Dr. Alexander
Counts of internists 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. Jacob Harrison Alexander billed Medicare for 709 services in 2024
CMS data shows 709 Medicare services from Dr. Alexander across 9 procedure codes in 2024, for 376 Medicare patients. Medicare paid $57,903 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Alexander's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7622024: 58523%
- Tests and treatments
- 2023: 1042024: 12419%
Dr. Alexander compared with the California median for internists, 2024
- Dr. Alexander
- California median
- Medicare services
- 709vs 36196% above
- Medicare patients
- 376vs 1512.5 times
- Part D claims
- 136vs 42168% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Alexander'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.
Need commercial claims for Dr. Alexander?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Alexander and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jacob Harrison Alexander treated 376 Medicare patients in 2024, average age 76
CMS counts 376 Medicare patients who saw Dr. Alexander in 2024. The largest group is 75 to 84, with 127 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.03, 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. Alexander's median patient age at 70, with 49% women.
Dr. Alexander's Medicare patients by age, 2024
Dr. Alexander's Medicare patients by sex, 2024
- Women20755%
- Men16945%
Chronic conditions among Dr. Alexander's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis57%
- Chronic kidney disease51%
- Ischemic heart disease42%
- Mood disorders40%
- Diabetes39%
- Depression36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Alexander's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jacob Harrison Alexander wrote 343 Medicare Part D claims in 2024
In 2024, Dr. Alexander wrote 343 Medicare Part D claims for 135 patients. 91% of them were for generic drugs. CMS names the drug for 136 of them, across 10 drugs with 11 or more claims each, at $7,943 in total drug cost. In 2023, CMS named 53 claims across 4 drugs.
Dr. Alexander's Part D claims by kind of drug, 2024
- Generic313 claims91%
- Brand-name and other30 claims9%
Dr. Alexander'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. Alexander's Part D claims, 2024
- Opioids7%24 of 343 claims
- Antibiotics19%65 of 343 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: 532024: 136157%
Drugs named by CMS: 10 in 2024, 4 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. Jacob Harrison Alexander takes part in Medicare
Dr. Alexander 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Jacob Harrison Alexander has 1 publication on record
Dmand AI links 1 paper to Dr. Alexander. Dr. Alexander's most frequent co-authors are Jacob Alexander, MD, Alan Bonder, MD and Nabiha Nuruzzaman, MD.
Dr. Alexander's most frequent co-authors
- Jacob Alexander, MD1 shared paper
- Alan Bonder, MD1 shared paper
- Nabiha Nuruzzaman, MD1 shared paper
Recent publications by Dr. Alexander
See who Dr. Alexander researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Alexander works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jacob Harrison Alexander received $117 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Alexander from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $117.
Companies that paid Dr. Alexander the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jacob Harrison Alexander has 1 award and honors on record
Dmand AI lists 1 award for Dr. Alexander, most recently Member in 2014.
Awards and honors for Dr. Alexander
- 2014
- Member
Source: Dmand AI Professional Profile Data
Dr. Jacob Harrison Alexander graduated from George Washington University School of Medicine and Health Sciences
Dr. Alexander graduated from George Washington University School of Medicine and Health Sciences in 2015. Dr. Alexander is a member of ACP and Society of Hospital Medicine.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Jacob Harrison Alexander accepts plans from 11 insurance carriers
Dr. Alexander is in network with 11 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Elevance
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +3 more carriersWith a free account
Plan types Dr. Alexander accepts, by number of carriers
- PPO7
- HMO6
- EPO4
- Medicare3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Jacob Harrison Alexander'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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Jacob Harrison Alexander
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. Jacob Harrison Alexander's NPI number?
Dr. Jacob Harrison Alexander's NPI number is 1104213081. It was assigned on April 19, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Jacob Harrison Alexander?
Dr. Jacob Harrison Alexander is an internist in Davis, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jacob Harrison Alexander practice?
Dr. Alexander practices at 2000 Sutter Place, Davis, CA 95616. Dr. Alexander's primary practice is Sutter Davis Hospital in Davis, California, part of Sutter Health. Dmand AI also links Dr. Alexander to 1 group practice or clinic.
What is Dr. Jacob Harrison Alexander's office phone number?
The practice phone on file for Dr. Alexander is (530) 757-5108.
What is Dr. Jacob Harrison Alexander's medical license number?
Dr. Alexander holds California license A144263.
Which hospitals is Dr. Jacob Harrison Alexander affiliated with?
Dr. Alexander practices at Sutter Davis Hospital in Davis, California. Dr. Alexander is also affiliated with Sutter Medical Center, Sacramento.
What medical group is Dr. Jacob Harrison Alexander part of?
Dr. Alexander is linked to SGMF Radiology.
Does Dr. Jacob Harrison Alexander accept Medicare?
Yes. CMS data shows Dr. Alexander billed Medicare for 709 services in 2024, and Dr. Alexander accepts Medicare assignment.
How many Medicare patients does Dr. Jacob Harrison Alexander see?
CMS counts 376 Medicare patients who saw Dr. Alexander in 2024, with an average age of 76.
Is Dr. Jacob Harrison Alexander board certified?
Yes. Dr. Alexander is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Jacob Harrison Alexander bill to Medicare?
In 2024, Dr. Alexander's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
Where did Dr. Jacob Harrison Alexander go to medical school?
Dr. Alexander graduated from George Washington University School of Medicine and Health Sciences in 2015.
What drugs does Dr. Jacob Harrison Alexander prescribe most?
In 2024 Medicare Part D data, Dr. Alexander's most prescribed drugs by claims were Furosemide, Pantoprazole Sodium and Atorvastatin Calcium.
Has Dr. Jacob Harrison Alexander received payments from drug or device companies?
CMS Open Payments shows $117 in general payments to Dr. Alexander from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Jacob Harrison Alexander been practicing?
Dr. Alexander graduated from medical school in 2015, 11 years ago.
Does Dr. Jacob Harrison Alexander do research?
Dmand AI links 1 publication to Dr. Alexander.
Who does Dr. Jacob Harrison Alexander publish with?
Dr. Alexander's most frequent co-authors are Jacob Alexander, MD (1 shared paper), Alan Bonder, MD (1 shared paper) and Nabiha Nuruzzaman, MD (1 shared paper).
What insurance does Dr. Jacob Harrison Alexander accept?
Dr. Alexander is in network with 11 carriers, including Aetna, United Healthcare and Elevance. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card