Dr. John Alden Weeks, MD
- Part D claims, 2024
- 4,924
- MIPS score, 2024
- 91
- Industry payments
- $124
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 15230 Lakeshore Drive, Clearlake, CA 95422
- Practice phone
- Call (707) 994-0407
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Adventist Health Clear Lake - Clearlake
Rural Health Clinic - Hospital-Owned · Clearlake, California
Find Dr. Weeks' 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. John Alden Weeks is a family medicine physician in Clearlake, California
Dr. Weeks practices at Adventist Health Clear Lake - Clearlake in Clearlake, California.
Dr. Weeks' NPI, 1962473074, was assigned on January 27, 2006. Dr. Weeks graduated from UC San Diego School of Medicine in 1976. Dr. Weeks holds California license G38230.
- NPI
- 1962473074NPI Registry (opens in a new tab)
- NPI enumeration date
- January 27, 2006
- NPI status
- Active
- Practice phone
- (707) 994-0407
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. John Alden Weeks practices at Adventist Health Clear Lake - Clearlake in Clearlake, California
Dr. Weeks' primary practice is Adventist Health Clear Lake - Clearlake, at 15230 Lakeshore Drive, Clearlake, CA 95422. The practice phone is (707) 994-0407.
- Adventist Health Clear Lake - Clearlake15230 Lakeshore Drive, Clearlake, CA 95422Phone(707) 994-0407
Source: Dmand AI Affiliation Data
Dr. John Alden Weeks is affiliated with 2 sites of care and 1 medical group
Dr. Weeks' primary practice is Adventist Health Clear Lake - Clearlake in Clearlake, California. The medical group on file is Adventist Health Physicians Network. Dmand AI also links Dr. Weeks to 1 more group practice or clinic, named with a free account. Dr. Weeks' employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Alden Weeks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weeks practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Clear Lake - Clearlake | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Alden Weeks is one of 15,680 family medicine physicians in California
Family medicine is Dr. Weeks' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Weeks is board certified in family medicine by the American Board of Family Medicine. Dr. Weeks is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute kidney failure, acute mini-stroke (TIA), acute skin infection, adjustment disease, alcohol use disorders and aneurysm among the conditions Dr. Weeks treats.
Family medicine physicians near Dr. Weeks
Counts of family medicine physicians 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. John Alden Weeks' patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Weeks' median patient age at 74, with 56% women.
Dr. Weeks' 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
- Women56%
- Men44%
Source: Dmand AI Patient Panel Data
Dr. John Alden Weeks wrote 4,924 Medicare Part D claims in 2024
In 2024, Dr. Weeks wrote 4,924 Medicare Part D claims for 218 patients. 88% of them were for generic drugs. CMS names the drug for 4,357 of them, across 93 drugs with 11 or more claims each, at $201,518 in total drug cost. In 2023, CMS named 4,656 claims across 96 drugs.
Dr. Weeks' Part D claims by kind of drug, 2024
- Generic4,352 claims88%
- Brand-name536 claims11%
- Other36 claims1%
Dr. Weeks' 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. Weeks' Part D claims, 2024
- Opioids4%197 of 4,924 claims
- Antibiotics1%61 of 4,924 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: 4,6562024: 4,3576%
Drugs named by CMS: 93 in 2024, 96 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. John Alden Weeks scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Weeks for performance year 2024, reported as part of a group.
Dr. Weeks' MIPS scores, performance year 2024
- 91of 100Final score
- 94of 100Quality
- 92of 100Promoting Interoperability
- 40of 100Improvement Activities
- 65of 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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Dr. John Alden Weeks received $124 in industry payments from 2017 to 2023
CMS Open Payments shows 8 general payments to Dr. Weeks from 5 drug and device companies from 2017 to 2023. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $41.
General payments to Dr. Weeks by program year, 2017 to 2023
Companies that paid Dr. Weeks the most, 2017 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Alden Weeks graduated from UC San Diego School of Medicine
Dr. Weeks graduated from UC San Diego School of Medicine in 1976. Dr. Weeks is a member of AAFP.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. John Alden Weeks accepts plans from 12 insurance carriers
Dr. Weeks is in network with 12 carriers, including Elevance, United Healthcare and HCSC. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Elevance
- United Healthcare
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- Aspirus Health Plan
- +4 more carriersWith a free account
Plan types Dr. Weeks accepts, by number of carriers
- PPO7
- HMO6
- Medicare5
- EPO3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. John Alden Weeks'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 |
| 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. John Alden Weeks
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. John Alden Weeks' NPI number?
Dr. John Alden Weeks' NPI number is 1962473074. It was assigned on January 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Alden Weeks?
Dr. John Alden Weeks is a family medicine physician in Clearlake, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. John Alden Weeks practice?
Dr. Weeks practices at 15230 Lakeshore Drive, Clearlake, CA 95422. Dr. Weeks' primary practice is Adventist Health Clear Lake - Clearlake in Clearlake, California. Dmand AI also links Dr. Weeks to 1 group practice or clinic.
What is Dr. John Alden Weeks' office phone number?
The practice phone on file for Dr. Weeks is (707) 994-0407.
What is Dr. John Alden Weeks' medical license number?
Dr. Weeks holds California license G38230.
What medical group is Dr. John Alden Weeks part of?
Dr. Weeks is linked to Adventist Health Physicians Network.
What is Dr. John Alden Weeks' MIPS score?
Dr. Weeks' MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
Is Dr. John Alden Weeks board certified?
Yes. Dr. Weeks is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. John Alden Weeks go to medical school?
Dr. Weeks graduated from UC San Diego School of Medicine in 1976.
What drugs does Dr. John Alden Weeks prescribe most?
In 2024 Medicare Part D data, Dr. Weeks' most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
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Has Dr. John Alden Weeks received payments from drug or device companies?
CMS Open Payments shows $124 in general payments to Dr. Weeks from 5 companies from 2017 to 2023. The largest total came from Pfizer Inc.
How long has Dr. John Alden Weeks been practicing?
Dr. Weeks graduated from medical school in 1976, 50 years ago.
What insurance does Dr. John Alden Weeks accept?
Dr. Weeks is in network with 12 carriers, including Elevance, United Healthcare and HCSC. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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