Gregory David James, PA
- Medicare services, 2024
- 77
- Medicare patients, 2024
- 68
- Part D claims, 2024
- 323
- MIPS score, 2024
- 96
- Hospital affiliations
- 3
- Practice address
- 15630 18th Ave - Hwy 53, Clearlake, CA 95422
- Practice phone
- Call (707) 994-6486
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Gregory James' professional email, personal email and mobile number
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Gregory David James is a surgical physician assistant in Clearlake, California
Gregory James practices at Adventist Health Clear Lake in Clearlake, California, part of Adventist Health.
Gregory James' NPI, 1912216797, was assigned on September 28, 2010. Gregory James holds California license PA19622.
- NPI
- 1912216797NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941496046
- NPI enumeration date
- September 28, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (707) 994-6486
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- 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)
Gregory David James practices at Adventist Health Clear Lake in Clearlake, California
Gregory James' primary practice is Adventist Health Clear Lake, at 15630 18th Ave - Hwy 53, Clearlake, CA 95422 in Lake County. The practice phone is (707) 994-6486.
- Adventist Health Clear Lake15630 18th Ave - Hwy 53, Clearlake, CA 95422 · Lake CountyPhone(707) 994-6486
Source: Dmand AI Affiliation Data
Gregory David James is affiliated with 5 sites of care and 3 medical groups
Gregory James' primary practice is Adventist Health Clear Lake in Clearlake, California, part of Adventist Health. Gregory James is also affiliated with Adventist Health Ukiah Valley. The medical group on file is Adventist Health Physicians Network. Dmand AI also links Gregory James to 1 more hospital, 2 group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Gregory David James' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory James practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Clear Lake | Available with a free account |
| +4 more sites and 2 medical groups | 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 Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Gregory David James is one of 883 surgical physician assistants in California
Surgical is Gregory James' primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Gregory James is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Gregory James is licensed in California.
Specialties and state licenses
- Surgical physician assistant, CaliforniaPrimary
Surgical physician assistants near Gregory James
Counts of surgical 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
Gregory David James billed Medicare for 77 services in 2024
CMS data shows 77 Medicare services from Gregory James across 2 procedure codes in 2024, for 68 Medicare patients. Medicare paid $4,777 for them.
Where Gregory James' Medicare services took place, 2024
- In an office1418%
- In a facility6382%
Gregory James compared with the California median for surgical physician assistants, 2024
- Gregory James
- California median
- Medicare services
- 77vs 22065% below
- Medicare patients
- 68vs 9024% below
- Part D claims
- 257vs 15566% above
Medians across 656 surgical physician assistants in California with Dmand AI profiles that report each measure.
Gregory James' 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
Gregory David James treated 68 Medicare patients in 2024, average age 73
CMS counts 68 Medicare patients who saw Gregory James in 2024. The largest group is 65 to 74, with 28 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.32, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Gregory James' median patient age at 74, with 46% women.
Gregory James' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Gregory James' Medicare patients by sex, 2024
- Women3044%
- Men3856%
Chronic conditions among Gregory James' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease59%
- Atrial fibrillation53%
- Arthritis47%
- Heart failure47%
- Diabetes43%
- COPD37%
Share of Medicare patients with each condition. A patient can have several.
Gregory James' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women46%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Gregory David James wrote 323 Medicare Part D claims in 2024
In 2024, Gregory James wrote 323 Medicare Part D claims for 86 patients. 97% of them were for generic drugs. CMS names the drug for 257 of them, across 9 drugs with 11 or more claims each, at $1,628 in total drug cost.
Gregory James' Part D claims by kind of drug, 2024
- Generic314 claims97%
- Brand-name and other9 claims3%
Gregory James' 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 Gregory James' Part D claims, 2024
- Opioids23%74 of 323 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
Gregory David James scored 96 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Gregory James for performance year 2024, reported through an alternative payment model (APM). Gregory James accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Gregory James as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Gregory James' MIPS scores, performance year 2024
- 96of 100Final score
- 81.5of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Gregory David James received $728 in industry payments from 2024 to 2025
CMS Open Payments shows 27 general payments to Gregory James from 3 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AtriCure, Inc. paid the most, $628.
General payments to Gregory James by program year, 2024 to 2025
Companies that paid Gregory James the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Gregory David James is board certified in certified physician assistant
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Gregory David James'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)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 Gregory David James
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory David James' NPI number?
Gregory David James' NPI number is 1912216797. It was assigned on September 28, 2010, and it is active in the NPI Registry.
What does Gregory David James specialize in?
Gregory David James is a surgical physician assistant in Clearlake, California. The primary specialty in the NPI Registry is Surgical Physician Assistant (taxonomy code 363AS0400X).
Where does Gregory David James practice?
Gregory James practices at 15630 18th Ave - Hwy 53, Clearlake, CA 95422. Gregory James' primary practice is Adventist Health Clear Lake in Clearlake, California, part of Adventist Health. Dmand AI also links Gregory James to 1 hospital, 2 group practices and clinics and 2 medical groups.
What is Gregory David James' office phone number?
The practice phone on file for Gregory James is (707) 994-6486.
What is Gregory David James' medical license number?
Gregory James holds California license PA19622.
Which hospitals is Gregory David James affiliated with?
Gregory James practices at Adventist Health Clear Lake in Clearlake, California. Gregory James is also affiliated with Adventist Health Ukiah Valley. Dmand AI links Gregory James to 1 more hospital.
What medical group is Gregory David James part of?
Gregory James is linked to Adventist Health Physicians Network. Dmand AI links Gregory James to 2 more medical groups.
Does Gregory David James accept Medicare?
Yes. CMS data shows Gregory James billed Medicare for 77 services in 2024, and Gregory James accepts Medicare assignment.
Does Gregory David James offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Gregory James as offering telehealth services.
What is Gregory David James' MIPS score?
Gregory James' MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).
Show 6 more questionsShow fewer questions
How many Medicare patients does Gregory David James see?
CMS counts 68 Medicare patients who saw Gregory James in 2024, with an average age of 73.
Is Gregory David James board certified?
Yes. Gregory James is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
What services does Gregory David James bill to Medicare?
In 2024, Gregory James' most billed Medicare services were hospital inpatient care (99232) and office visit, established patient (99213).
What drugs does Gregory David James prescribe most?
In 2024 Medicare Part D data, Gregory James' most prescribed drugs by claims were Furosemide, Potassium Chloride and Oxycodone HCl.
Has Gregory David James received payments from drug or device companies?
CMS Open Payments shows $728 in general payments to Gregory James from 3 companies from 2024 to 2025. The largest total came from AtriCure, Inc.
How long has Gregory David James been practicing?
Gregory James graduated from medical school in 2007, 19 years ago.
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