Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function (opens in a new tab)
CompletedEarly phase 1
Vitamin D DeficiencyAvitaminosisVitamin D25(OH)D3
Dr. John S. Adams, MD
NPI1215914114
- Part D claims, 2024
- 412
- Publications
- 5
- Clinical trials
- 2
- Industry payments
- $660
- Affiliated sites
- 1
- Practice address
- 10441 Lakewood Blvd Suite E Suite E, Downey, CA 90241-2871
- Practice phone
- Call (562) 869-3585
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ajay Patel
Multi-specialty group site · Downey, California
Find Dr. Adams' 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 S. Adams is an orthopedic surgeon in Los Angeles, California
Dr. Adams practices at Ajay Patel in Downey, California.
Dr. Adams' NPI, 1215914114, was assigned on December 30, 2005. Dr. Adams graduated from University of Kansas School of Medicine - Kansas City in 1974. Dr. Adams holds California license G48420.
NPI and contact details
- NPI
- 1215914114NPI Registry (opens in a new tab)
- NPI enumeration date
- December 30, 2005
- NPI status
- Active
- Practice phone
- (562) 869-3585
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John S. Adams practices in Downey and Los Angeles
Dr. Adams' primary practice is Ajay Patel, at 10441 Lakewood Blvd Suite E Suite E, Downey, CA 90241-2871. The practice phone is (562) 869-3585. The NPI Registry lists Dr. Adams' practice address as 757 Westwood Plz, Los Angeles, CA 90095.
- Ajay PatelPrimary10441 Lakewood Blvd Suite E Suite E, Downey, CA 90241-2871Phone(562) 869-3585
- NPI Registry address757 Westwood Plz, Los Angeles, CA 90095 · Los Angeles CountyPhone(310) 825-0652
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John S. Adams is affiliated with 1 site of care and 1 medical group
Dr. Adams' primary practice is Ajay Patel in Downey, California. The medical group on file is Ajay Patel MD.
Ajay PatelPrimary
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John S. Adams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Adams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ajay Patel | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John S. Adams is one of 2,056 orthopedic surgeons in California
Orthopaedic surgery is Dr. Adams' primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Adams is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine. Dmand AI has Dr. Adams' licenses on file in 2 states: California and Massachusetts.
Specialties and state licenses
- Orthopaedic surgery, CaliforniaPrimary
- Massachusetts license
Orthopedic surgeons near Dr. Adams
Counts of orthopedic surgeons 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 S. Adams' patients have a median age of 51
Across all payers, Dmand AI patient panel data puts Dr. Adams' median patient age at 51, with 52% women.
Dr. Adams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. John S. Adams wrote 412 Medicare Part D claims in 2024
In 2024, Dr. Adams wrote 412 Medicare Part D claims for 14 patients. 93% of them were for generic drugs. CMS names the drug for 234 of them, across 15 drugs with 11 or more claims each, at $9,786 in total drug cost. In 2017, CMS named 25 claims across 2 drugs.
Part D claims, 2024412
Drugs named by CMS15
Total drug cost$9,786
Part D patients14
Dr. Adams' Part D claims by kind of drug, 2024
- Generic382 claims93%
- Brand-name and other30 claims7%
Dr. Adams' 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. Adams' Part D claims, 2024
- Antibiotics3%12 of 412 claims
- Antipsychotics, patients 65 and over3%11 of 412 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, 2017 to 2024
- 2017
- 2024
- Claims for drugs CMS names
- 2017: 252024: 234836%
Drugs named by CMS: 15 in 2024, 2 in 2017.
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
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Dr. John S. Adams has 5 publications on record
Dmand AI links 5 papers to Dr. Adams, published from 2012 to 2017. Dr. Adams' most frequent co-authors are John Stewart Adams, MD, Ines Donangelo, MD and Andrew H. Krinsky, MD.
Papers5
Years published2012 to 2017
Dr. Adams' most frequent co-authors
- John Stewart Adams, MD1 shared paper
- Ines Donangelo, MD1 shared paper
- Andrew H. Krinsky, MD1 shared paper
Recent publications by Dr. Adams
See who Dr. Adams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Adams works with, so you can find a warm path to the right orthopedic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John S. Adams has worked on 2 clinical trials
Dmand AI links Dr. Adams to 2 clinical trials. Conditions studied include Vitamin D Deficiency and Avitaminosis. University of California, Los Angeles sponsors the most, 2.
Conditions in Dr. Adams' trials
- Vitamin D Deficiency
- Avitaminosis
Investigators on the most trials with Dr. Adams
- Albert Shieh, MD2 shared trials
- Susan V. Bukata, MD1 shared trial
- Theodore C. Friedman, MD1 shared trial
Recent clinical trials with Dr. Adams
Vitamin D DeficiencyAvitaminosisVitamin D2Vitamin D3
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. John S. Adams received $660 in industry payments from 2016 to 2022
CMS Open Payments shows 14 general payments to Dr. Adams from 5 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 49% of the total. Nevro Corp. paid the most, $486.
General payments to Dr. Adams by program year, 2016 to 2022
General payments to Dr. Adams by kind, 2016 to 2022
$660in total
- Food and beverage$32449%
- Travel and lodging$28042%
- Education$386%
- Speaker and faculty fees$183%
Companies that paid Dr. Adams the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John S. Adams has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Adams, most recently ASCI Member in 1990.
Awards and honors for Dr. Adams
- 1990
- ASCI Member
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. John S. Adams graduated from University of Kansas School of Medicine - Kansas City
Dr. Adams graduated from University of Kansas School of Medicine - Kansas City in 1974.
- Medical school
- Board certified in endocrinology, diabetes and metabolism
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John S. Adams accepts plans from 10 insurance carriers
Dr. Adams is in network with 10 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
- United Healthcare
- Elevance
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- Alliant Health Plans
- Blue Cross and Blue Shield of Kansas City
- Delta Dental
- +2 more carriersWith a free account
Plan types Dr. Adams accepts, by number of carriers
- PPO7
- HMO6
- EPO3
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. John S. Adams'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. John S. Adams
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 S. Adams' NPI number?
Dr. John S. Adams' NPI number is 1215914114. It was assigned on December 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John S. Adams?
Dr. John S. Adams is an orthopedic surgeon in Los Angeles, California. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. John S. Adams practice?
Dr. Adams practices at 10441 Lakewood Blvd Suite E Suite E, Downey, CA 90241-2871. Dr. Adams also practices at 757 Westwood Plz, Los Angeles, CA 90095. Dr. Adams' primary practice is Ajay Patel in Downey, California.
What is Dr. John S. Adams' office phone number?
The practice phone on file for Dr. Adams is (562) 869-3585.
What is Dr. John S. Adams' medical license number?
Dr. Adams holds California license G48420, one of the licenses on file in 2 states.
Which states has Dr. John S. Adams been licensed in?
Dmand AI has state licenses on file for Dr. Adams in California (1982 to 2026) and Massachusetts (2015 to 2016).
What medical group is Dr. John S. Adams part of?
Dr. Adams is linked to Ajay Patel MD.
Is Dr. John S. Adams board certified?
Yes. Dr. Adams is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine.
Where did Dr. John S. Adams go to medical school?
Dr. Adams graduated from University of Kansas School of Medicine - Kansas City in 1974.
What drugs does Dr. John S. Adams prescribe most?
In 2024 Medicare Part D data, Dr. Adams' most prescribed drugs by claims were Atorvastatin Calcium, Latanoprost and Levetiracetam.
Show 5 more questionsShow fewer questions
Has Dr. John S. Adams received payments from drug or device companies?
CMS Open Payments shows $660 in general payments to Dr. Adams from 5 companies from 2016 to 2022. The largest total came from Nevro Corp.
How long has Dr. John S. Adams been practicing?
Dr. Adams graduated from medical school in 1974, 52 years ago.
Does Dr. John S. Adams do research?
Dmand AI links 5 publications to Dr. Adams, published from 2012 to 2017. Dr. Adams has worked on 2 clinical trials.
Who does Dr. John S. Adams publish with?
Dr. Adams' most frequent co-authors are John Stewart Adams, MD (1 shared paper), Ines Donangelo, MD (1 shared paper) and Andrew H. Krinsky, MD (1 shared paper).
What insurance does Dr. John S. Adams accept?
Dr. Adams is in network with 10 carriers, including United Healthcare, Elevance and Aetna. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.
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