Dr. Earl Clark II, MD
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 1,549
- Publications
- 2
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 380 West MacArthur Boulevard, Oakland, CA 94609
- Practice phone
- Call (510) 251-0121
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Addiction Medicine & Recovery Services at Oakland Medical Center
Outpatient Addiction Treatment · Oakland, California
Find Dr. Clark'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. Earl Clark II is a family medicine physician in Oakland, California
Dr. Clark practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California.
Dr. Clark's NPI, 1104387174, was assigned on March 30, 2019. Dr. Clark graduated from University of Kansas School of Medicine - Kansas City in 1945. Dr. Clark holds California license A179809.
- NPI
- 1104387174NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1658601315
- NPI enumeration date
- March 30, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (510) 251-0121
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 1945
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Earl Clark II practices at Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California
Dr. Clark's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center, at 380 West MacArthur Boulevard, Oakland, CA 94609. The practice phone is (510) 251-0121.
- Addiction Medicine & Recovery Services at Oakland Medical Center380 West MacArthur Boulevard, Oakland, CA 94609Phone(510) 251-0121
Source: Dmand AI Affiliation Data
Dr. Earl Clark II is affiliated with 3 sites of care and 1 medical group
Dr. Clark's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California. Dr. Clark is also affiliated with Oakland Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Clark 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. Earl Clark II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Clark practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Addiction Medicine & Recovery Services at Oakland Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Earl Clark II is one of 15,680 family medicine physicians in California
Family medicine is Dr. Clark's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Clark is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Clark's licenses on file in 2 states: California and Louisiana.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
- Louisiana license
Family medicine physicians near Dr. Clark
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. Earl Clark II treated 13 Medicare patients in 2024, average age 64
CMS counts 13 Medicare patients who saw Dr. Clark in 2024. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Clark's median patient age at 49, with 61% women.
Dr. Clark's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Earl Clark II wrote 1,549 Medicare Part D claims in 2024
In 2024, Dr. Clark wrote 1,549 Medicare Part D claims for 335 patients. 88% of them were for generic drugs. CMS names the drug for 1,094 of them, across 42 drugs with 11 or more claims each, at $117,843 in total drug cost. In 2023, CMS named 97 claims across 6 drugs.
Dr. Clark's Part D claims by kind of drug, 2024
- Generic1,368 claims88%
- Brand-name and other181 claims12%
Dr. Clark'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. Clark's Part D claims, 2024
- Opioids7%113 of 1,549 claims
- Antibiotics5%83 of 1,549 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: 972024: 1,0941028%
Drugs named by CMS: 42 in 2024, 6 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. Earl Clark II offers telehealth to Medicare patients
Dr. Clark accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Clark as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Earl Clark II has 2 publications on record
Dmand AI links 2 papers to Dr. Clark, published from 2020 to 2023. Dr. Clark's most frequent co-authors are Avani Dalal and Mitchell N. Luu, MD.
Dr. Clark's most frequent co-authors
Recent publications by Dr. Clark
Astrobiology
See who Dr. Clark researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Clark works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Earl Clark II graduated from University of Kansas School of Medicine - Kansas City
Dr. Clark graduated from University of Kansas School of Medicine - Kansas City in 1945.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Earl Clark II accepts plans from 2 insurance carriers
Dr. Clark is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Clark accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Earl Clark II'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 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 |
| 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. Earl Clark II
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. Earl Clark II's NPI number?
Dr. Earl Clark II's NPI number is 1104387174. It was assigned on March 30, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Earl Clark II?
Dr. Earl Clark II is a family medicine physician in Oakland, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Earl Clark II practice?
Dr. Clark practices at 380 West MacArthur Boulevard, Oakland, CA 94609. Dr. Clark's primary practice is Addiction Medicine & Recovery Services at Oakland Medical Center in Oakland, California. Dmand AI also links Dr. Clark to 1 group practice or clinic.
What is Dr. Earl Clark II's office phone number?
The practice phone on file for Dr. Clark is (510) 251-0121.
What is Dr. Earl Clark II's medical license number?
Dr. Clark holds California license A179809, one of the licenses on file in 2 states.
Which states has Dr. Earl Clark II been licensed in?
Dmand AI has state licenses on file for Dr. Clark in California (2022 to 2026) and Louisiana (2019 to 2022).
Which hospitals is Dr. Earl Clark II affiliated with?
Dr. Clark is affiliated with Oakland Medical Center.
What medical group is Dr. Earl Clark II part of?
Dr. Clark is linked to The Permanente Medical Group, Inc.
Does Dr. Earl Clark II accept Medicare?
Yes. CMS lists Dr. Clark as accepting Medicare assignment.
Does Dr. Earl Clark II offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Clark as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Earl Clark II see?
CMS counts 13 Medicare patients who saw Dr. Clark in 2024, with an average age of 64.
Is Dr. Earl Clark II board certified?
Yes. Dr. Clark is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. Earl Clark II go to medical school?
Dr. Clark graduated from University of Kansas School of Medicine - Kansas City in 1945.
What drugs does Dr. Earl Clark II prescribe most?
In 2024 Medicare Part D data, Dr. Clark's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Hydrocodone-Acetaminophen.
How long has Dr. Earl Clark II been practicing?
Dr. Clark graduated from medical school in 1945, 81 years ago.
Does Dr. Earl Clark II do research?
Dmand AI links 2 publications to Dr. Clark, published from 2020 to 2023.
Who does Dr. Earl Clark II publish with?
Dr. Clark's most frequent co-authors are Avani Dalal (1 shared paper) and Mitchell N. Luu, MD (1 shared paper).
What insurance does Dr. Earl Clark II accept?
Dr. Clark is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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