Dr. Jason R. Hatfield, DO
- Medicare services, 2024
- 65
- Medicare patients, 2024
- 28
- Part D claims, 2024
- 648
- Industry payments
- $71,581
- Affiliated sites
- 2
- Practice address
- 900 E Hamilton Ave, Campbell, CA 95008
- Practice phone
- Call (469) 466-7007
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Signify Health
Campbell, California
Find Dr. Hatfield's professional email, personal email and mobile number
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Dr. Jason R. Hatfield is an internist in Campbell, California
Dr. Hatfield practices at Signify Health in Campbell, California.
Dr. Hatfield's NPI, 1972899219, was assigned on June 24, 2011. Dr. Hatfield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2008. Dr. Hatfield holds Ohio license 34010203.
- NPI
- 1972899219NPI Registry (opens in a new tab)
- NPI enumeration date
- June 24, 2011
- NPI status
- Active
- Practice phone
- (469) 466-7007
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Jason R. Hatfield practices at Signify Health in Campbell, California
Dr. Hatfield's primary practice is Signify Health, at 900 E Hamilton Ave, Campbell, CA 95008 in Santa Clara County. The practice phone is (469) 466-7007.
- Signify Health900 E Hamilton Ave, Campbell, CA 95008 · Santa Clara CountyPhone(469) 466-7007
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jason R. Hatfield is affiliated with 3 sites of care and 3 medical groups
Dr. Hatfield's primary practice is Signify Health in Campbell, California. The medical group on file is Signify Health. Dmand AI also links Dr. Hatfield to 2 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jason R. Hatfield's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hatfield practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Signify Health | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jason R. Hatfield is one of 16,751 internists in California
Internal medicine is Dr. Hatfield's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Hatfield is licensed in Ohio.
Specialties and state licenses
- Internal medicine, OhioPrimary
Internists near Dr. Hatfield
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. Jason R. Hatfield billed Medicare for 65 services in 2024
CMS data shows 65 Medicare services from Dr. Hatfield across 2 procedure codes in 2024, for 28 Medicare patients. Medicare paid $5,492 for them. Every service was in an office.
Dr. Hatfield's Medicare services by type, 2021 to 2024
- 2021
- 2024
- Office and hospital visits
- 2021: 1222024: 6547%
Dr. Hatfield compared with the California median for internists, 2024
- Dr. Hatfield
- California median
- Medicare services
- 65vs 36182% below
- Medicare patients
- 28vs 15181% below
- Part D claims
- 249vs 42141% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Hatfield'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hatfield and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jason R. Hatfield treated 28 Medicare patients in 2024, average age 77
CMS counts 28 Medicare patients who saw Dr. Hatfield in 2024. The largest group is 75 to 84, with 11 patients. 75% of them have depression, and 75% have high blood pressure. Their average risk score is 2.63, 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. Hatfield's median patient age at 75, with 57% women.
Dr. Hatfield's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hatfield's Medicare patients by sex, 2024
- Women1761%
- Men1139%
Chronic conditions among Dr. Hatfield's Medicare patients, 2024
- Depression75%
- High blood pressure75%
- Mood disorders75%
- Alzheimer's and dementia64%
- Anxiety57%
- Diabetes54%
- High cholesterol54%
- Stroke or TIA50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hatfield's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women57%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jason R. Hatfield wrote 648 Medicare Part D claims in 2024
In 2024, Dr. Hatfield wrote 648 Medicare Part D claims for 61 patients. 79% of them were for generic drugs. CMS names the drug for 249 of them, across 16 drugs with 11 or more claims each, at $30,302 in total drug cost. In 2022, CMS named 27 claims across 1 drug.
Dr. Hatfield's Part D claims by kind of drug, 2024
- Generic513 claims79%
- Brand-name107 claims17%
- Other28 claims4%
Dr. Hatfield'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. Hatfield's Part D claims, 2024
- Opioids8%50 of 648 claims
- Antibiotics7%46 of 648 claims
- Antipsychotics, patients 65 and over2%16 of 648 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 272024: 249822%
Drugs named by CMS: 16 in 2024, 1 in 2022.
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
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Dr. Jason R. Hatfield received $71,581 in industry payments from 2016 to 2025
CMS Open Payments shows 38 general payments to Dr. Hatfield from 5 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 99% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $71,442.
General payments to Dr. Hatfield by program year, 2016 to 2025
General payments to Dr. Hatfield by kind, 2016 to 2025
- Consulting fees$70,96799%
- Education$4751%
- Food and beverage$1390%
Companies that paid Dr. Hatfield the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jason R. Hatfield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville
Dr. Hatfield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jason R. Hatfield'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 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) |
| 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. Jason R. Hatfield
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. Jason R. Hatfield's NPI number?
Dr. Jason R. Hatfield's NPI number is 1972899219. It was assigned on June 24, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Jason R. Hatfield?
Dr. Jason R. Hatfield is an internist in Campbell, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jason R. Hatfield practice?
Dr. Hatfield practices at 900 E Hamilton Ave, Campbell, CA 95008. Dr. Hatfield's primary practice is Signify Health in Campbell, California. Dmand AI also links Dr. Hatfield to 2 group practices and clinics and 2 medical groups.
What is Dr. Jason R. Hatfield's office phone number?
The practice phone on file for Dr. Hatfield is (469) 466-7007.
What is Dr. Jason R. Hatfield's medical license number?
Dr. Hatfield holds Ohio license 34010203.
What medical group is Dr. Jason R. Hatfield part of?
Dr. Hatfield is linked to Signify Health. Dmand AI links Dr. Hatfield to 2 more medical groups.
Does Dr. Jason R. Hatfield accept Medicare?
Yes. CMS data shows Dr. Hatfield billed Medicare for 65 services in 2024.
How many Medicare patients does Dr. Jason R. Hatfield see?
CMS counts 28 Medicare patients who saw Dr. Hatfield in 2024, with an average age of 77.
What services does Dr. Jason R. Hatfield bill to Medicare?
In 2024, Dr. Hatfield's most billed Medicare services were nursing facility care (99309) and nursing facility care (99305).
Where did Dr. Jason R. Hatfield go to medical school?
Dr. Hatfield graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2008.
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What drugs does Dr. Jason R. Hatfield prescribe most?
In 2024 Medicare Part D data, Dr. Hatfield's most prescribed drugs by claims were Gabapentin, Autoshield Duo Pen Needle and Eliquis.
Has Dr. Jason R. Hatfield received payments from drug or device companies?
CMS Open Payments shows $71,581 in general payments to Dr. Hatfield from 5 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Jason R. Hatfield been practicing?
Dr. Hatfield graduated from medical school in 2008, 18 years ago.
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