John David Stack, PA
- Part D claims, 2024
- 7,168
- MIPS score, 2024
- 77
- Hospital affiliations
- 1
- Industry payments
- $1,569
- Medical groups
- 2
- Practice address
- 2767 Olive Highway, Oroville, CA 95966
- Practice phone
- Call (530) 533-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find John Stack'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 David Stack is a physician assistant in Oroville, California
John Stack practices at Oroville Hospital in Oroville, California, part of Oro Hospital.
John Stack's NPI, 1629170592, was assigned on September 2, 2006. John Stack holds California license PA13683.
- NPI
- 1629170592NPI Registry (opens in a new tab)
- NPI enumeration date
- September 2, 2006
- NPI status
- Active
- Practice phone
- (530) 533-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
John David Stack practices at Oroville Hospital in Oroville, California
John Stack's primary practice is Oroville Hospital, at 2767 Olive Highway, Oroville, CA 95966 in Butte County. The practice phone is (530) 533-8500.
- Oroville Hospital2767 Olive Highway, Oroville, CA 95966 · Butte CountyPhone(530) 533-8500
Source: Dmand AI Affiliation Data
John David Stack is affiliated with 1 site of care and 2 medical groups
John Stack's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. The medical group on file is Oroville Hospital. Dmand AI also links John Stack to 1 more medical group, named with a free account. John Stack's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John David Stack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Stack practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oroville Hospital | Available with a free account |
| +1 medical group | 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 Oro Hospital and 6.2K+ hospitals, with verified contacts in the same login.
John David Stack is one of 11,482 physician assistants in California
Physician assistant is John Stack's primary specialty in the NPI Registry, under taxonomy code 363A00000X. John Stack is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). John Stack is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near John Stack
Counts of physician assistants 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 David Stack's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts John Stack's median patient age at 66, with 59% women.
John Stack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women59%
- Men41%
Source: Dmand AI Patient Panel Data
John David Stack wrote 7,168 Medicare Part D claims in 2024
In 2024, John Stack wrote 7,168 Medicare Part D claims for 250 patients. 76% of them were for generic drugs. CMS names the drug for 6,547 of them, across 126 drugs with 11 or more claims each, at $983,235 in total drug cost.
John Stack's Part D claims by kind of drug, 2024
- Generic5,461 claims76%
- Brand-name1,641 claims23%
- Other66 claims1%
John Stack'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 Stack's Part D claims, 2024
- Opioids1%83 of 7,168 claims
- Antibiotics2%177 of 7,168 claims
- Antipsychotics, patients 65 and over1%101 of 7,168 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 David Stack scored 77 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 77 out of 100 for John Stack for performance year 2024, reported as part of a group.
John Stack's MIPS scores, performance year 2024
- 77of 100Final score
- 36.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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John David Stack received $1,569 in industry payments from 2024 to 2025
CMS Open Payments shows 83 general payments to John Stack from 14 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $668.
General payments to John Stack by program year, 2024 to 2025
Companies that paid John Stack the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
John David Stack is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for John David Stack'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 | 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 John David Stack
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 David Stack's NPI number?
John David Stack's NPI number is 1629170592. It was assigned on September 2, 2006, and it is active in the NPI Registry.
What does John David Stack specialize in?
John David Stack is a physician assistant in Oroville, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does John David Stack practice?
John Stack practices at 2767 Olive Highway, Oroville, CA 95966. John Stack's primary practice is Oroville Hospital in Oroville, California, part of Oro Hospital. Dmand AI also links John Stack to 1 medical group.
What is John David Stack's office phone number?
The practice phone on file for John Stack is (530) 533-8500.
What is John David Stack's medical license number?
John Stack holds California license PA13683.
Which hospitals is John David Stack affiliated with?
John Stack practices at Oroville Hospital in Oroville, California.
What medical group is John David Stack part of?
John Stack is linked to Oroville Hospital. Dmand AI links John Stack to 1 more medical group.
What is John David Stack's MIPS score?
John Stack's MIPS final score for performance year 2024 is 77 out of 100, reported as part of a group.
Is John David Stack board certified?
Yes. John Stack is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What drugs does John David Stack prescribe most?
In 2024 Medicare Part D data, John Stack's most prescribed drugs by claims were Atorvastatin Calcium, Albuterol Sulfate Hfa and Levothyroxine Sodium.
Has John David Stack received payments from drug or device companies?
CMS Open Payments shows $1,569 in general payments to John Stack from 14 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has John David Stack been practicing?
John Stack's NPI was assigned in 2006.
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