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Dr. Timothy John Stocker, MD
NPI1588858781PAC ID0749327856
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 5,428
- Publications
- 2
- Hospital affiliations
- 1
- Medical group
- 1
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stocker'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. Timothy John Stocker is an internist in Harbor City, California
Dr. Stocker practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Dr. Stocker's NPI, 1588858781, was assigned on August 30, 2007. Dr. Stocker graduated from UC Davis School of Medicine in 2006. Dr. Stocker's California license number on file is A101386.
NPI and contact details
- NPI
- 1588858781NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749327856
- NPI enumeration date
- August 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy John Stocker practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Dr. Stocker's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Dr. Timothy John Stocker is affiliated with 2 sites of care and 1 medical group
Dr. Stocker's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Stocker 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. Timothy John Stocker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stocker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | 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. Timothy John Stocker is one of 16,751 internists in California
Internal medicine is Dr. Stocker's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Stocker is board certified in internal medicine by the American Board of Internal Medicine. Dr. Stocker has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists upper respiratory infection (URI) among the conditions Dr. Stocker treats.
Internists near Dr. Stocker
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California105internists in Harbor City96internists at Kaiser Permanente South Bay Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Timothy John Stocker treated 12 Medicare patients in 2024, average age 69
CMS counts 12 Medicare patients who saw Dr. Stocker in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 0.93, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Stocker's median patient age at 53, with 54% women.
Medicare patients, 202412
Average age69
Average risk score0.93
Dr. Stocker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Stocker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy John Stocker wrote 5,428 Medicare Part D claims in 2024
In 2024, Dr. Stocker wrote 5,428 Medicare Part D claims for 862 patients. 88% of them were for generic drugs. CMS names the drug for 4,883 of them, across 94 drugs with 11 or more claims each, at $272,656 in total drug cost. In 2023, CMS named 4,431 claims across 93 drugs.
Part D claims, 20245,428
Drugs named by CMS94
Total drug cost$272,656
Part D patients862
Dr. Stocker's Part D claims by kind of drug, 2024
- Generic4,768 claims88%
- Brand-name600 claims11%
- Other60 claims1%
Dr. Stocker'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. Stocker's Part D claims, 2024
- Opioids2%124 of 5,428 claims
- Antibiotics2%96 of 5,428 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: 4,4312024: 4,88310%
Drugs named by CMS: 94 in 2024, 93 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
How Dr. Timothy John Stocker takes part in Medicare
Dr. Stocker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Timothy John Stocker has 2 publications on record
Dmand AI links 2 papers to Dr. Stocker. Dr. Stocker's most frequent co-authors are Tonya L. Fancher, MD, Craig Raymond Keenan, MD and Robert M. McCarron, DO.
Papers2
Dr. Stocker's most frequent co-authors
- Tonya L. Fancher, MD1 shared paper
- Craig Raymond Keenan, MD1 shared paper
- Robert M. McCarron, DO1 shared paper
Recent publications by Dr. Stocker
Academic Medical CentersCaliforniaCommunity Health Services
See who Dr. Stocker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Stocker works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Timothy John Stocker has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Stocker, most recently NCQA DRP in 2015.
Awards and honors for Dr. Stocker
- 2015
- NCQA DRP
- 2014
- CMS Stage 1 2012
- 2013
- NCQA HSRP
Source: Dmand AI Professional Profile Data
Dr. Timothy John Stocker graduated from UC Davis School of Medicine
Dr. Stocker graduated from UC Davis School of Medicine in 2006.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Timothy John Stocker accepts plans from 2 insurance carriers
Dr. Stocker 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. Stocker accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Timothy John Stocker'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 |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Timothy John Stocker
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. Timothy John Stocker's NPI number?
Dr. Timothy John Stocker's NPI number is 1588858781. It was assigned on August 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy John Stocker?
Dr. Timothy John Stocker is an internist in Harbor City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Timothy John Stocker practice?
Dr. Stocker practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Stocker's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dmand AI also links Dr. Stocker to 1 group practice or clinic.
What is Dr. Timothy John Stocker's office phone number?
The practice phone on file for Dr. Stocker is (310) 325-5111.
What is Dr. Timothy John Stocker's medical license number?
Dr. Stocker's California license number on file is A101386.
Which hospitals is Dr. Timothy John Stocker affiliated with?
Dr. Stocker practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.
What medical group is Dr. Timothy John Stocker part of?
Dr. Stocker is linked to Southern California Permanente Medical Group.
Does Dr. Timothy John Stocker accept Medicare?
Yes. CMS lists Dr. Stocker as accepting Medicare assignment.
How many Medicare patients does Dr. Timothy John Stocker see?
CMS counts 12 Medicare patients who saw Dr. Stocker in 2024, with an average age of 69.
Is Dr. Timothy John Stocker board certified?
Yes. Dr. Stocker is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
Where did Dr. Timothy John Stocker go to medical school?
Dr. Stocker graduated from UC Davis School of Medicine in 2006.
What drugs does Dr. Timothy John Stocker prescribe most?
In 2024 Medicare Part D data, Dr. Stocker's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
How long has Dr. Timothy John Stocker been practicing?
Dr. Stocker graduated from medical school in 2006, 20 years ago.
Does Dr. Timothy John Stocker do research?
Dmand AI links 2 publications to Dr. Stocker.
Who does Dr. Timothy John Stocker publish with?
Dr. Stocker's most frequent co-authors are Tonya L. Fancher, MD (1 shared paper), Craig Raymond Keenan, MD (1 shared paper) and Robert M. McCarron, DO (1 shared paper).
What insurance does Dr. Timothy John Stocker accept?
Dr. Stocker 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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