AntibodiesGlycoproteinsGlycosylation
Dr. John Giddens Jr., MD
NPI1417934803PAC ID2163409616
- Medicare services, 2020
- 73
- Medicare patients, 2024
- 17
- Part D claims, 2024
- 60
- Publications
- 13
- Affiliated sites
- 2
- Practice address
- 542 Broadway, Chula Vista, CA 91910
- Practice phone
- Call (972) 364-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Concentra Urgent Care - Chula Vista
Urgent Care Center · Chula Vista, California
Find Dr. Giddens' 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 Giddens Jr. is an internist in Chula Vista, California
Dr. Giddens practices at Concentra Urgent Care - Chula Vista in Chula Vista, California.
Dr. Giddens' NPI, 1417934803, was assigned on December 27, 2005. Dr. Giddens graduated from UC Davis School of Medicine in 1980. Dr. Giddens holds California license G45185.
NPI and contact details
- NPI
- 1417934803NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163409616
- NPI enumeration date
- December 27, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (972) 364-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Giddens Jr. practices at Concentra Urgent Care - Chula Vista in Chula Vista, California
Dr. Giddens' primary practice is Concentra Urgent Care - Chula Vista, at 542 Broadway, Chula Vista, CA 91910. The practice phone is (972) 364-8000.
- Concentra Urgent Care - Chula Vista542 Broadway, Chula Vista, CA 91910Phone(972) 364-8000
Source: Dmand AI Affiliation Data
Dr. John Giddens Jr. is affiliated with 2 sites of care and 1 medical group
Dr. Giddens' primary practice is Concentra Urgent Care - Chula Vista in Chula Vista, California. The medical group on file is Concentra Urgent Care. Dmand AI also links Dr. Giddens to 1 more group practice or clinic, named with a free account. Dr. Giddens' employer is on file too: an urgent care center.
Concentra Urgent Care - Chula VistaPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Giddens Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Giddens practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Concentra Urgent Care - Chula Vista | 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 Giddens Jr. is one of 16,751 internists in California
Internal medicine is Dr. Giddens' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Giddens is board certified in internal medicine by the American Board of Internal Medicine. Dr. Giddens is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute skin infection, minor injury to a limb and upper respiratory infection (URI) among the conditions Dr. Giddens treats.
Internists near Dr. Giddens
Counts of internists 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 Giddens Jr. billed Medicare for 73 services in 2020
CMS data shows 73 Medicare services from Dr. Giddens across 2 procedure codes in 2020, all of them office visits, for 17 Medicare patients. Medicare paid $4,586 for them. Every service was in an office.
Medicare services, 202073
Medicare patients17
Paid by Medicare$4,586
Procedure codes2
Dr. Giddens' Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 812020: 7310%
Dr. Giddens compared with the California median for internists, 2020
- Dr. Giddens
- California median
- Medicare services
- 73vs 36180% below
- Medicare patients
- 17vs 15189% below
- Part D claims
- 12vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Giddens' most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Giddens?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Giddens and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Giddens Jr. treated 17 Medicare patients in 2024, average age 75
CMS counts 17 Medicare patients who saw Dr. Giddens in 2024. 71% of them have high blood pressure, and 65% have high cholesterol. Their average risk score is 0.60, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Giddens' median patient age at 49, with 42% women.
Medicare patients, 202417
Average age75
Average risk score0.60
Chronic conditions among Dr. Giddens' Medicare patients, 2024
- High blood pressure71%
- High cholesterol65%
Share of Medicare patients with each condition. A patient can have several.
Dr. Giddens' 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
- Women42%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Giddens Jr. wrote 60 Medicare Part D claims in 2024
In 2024, Dr. Giddens wrote 60 Medicare Part D claims for 24 patients. 93% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $3,400 in total drug cost. In 2019, CMS named 27 claims across 2 drugs.
Part D claims, 202460
Drugs named by CMS1
Total drug cost$3,400
Part D patients24
Dr. Giddens' Part D claims by kind of drug, 2024
- Generic56 claims93%
- Brand-name and other4 claims7%
Dr. Giddens' 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. Giddens' Part D claims, 2024
- Antibiotics27%16 of 60 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, 2019 to 2024
- 2019
- 2024
- Claims for drugs CMS names
- 2019: 272024: 1256%
Drugs named by CMS: 1 in 2024, 2 in 2019.
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. John Giddens Jr. takes part in Medicare
Dr. Giddens 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. John Giddens Jr. has 13 publications on record
Dmand AI links 13 papers to Dr. Giddens, published from 2014 to 2019. 2014 was the busiest year, with 3. The most frequent topics are Glycosylation, Immunoglobulin Fc Fragments and Polysaccharides. Dr. Giddens has published most often in Proc Natl Acad Sci U S A. Dr. Giddens' most frequent co-author is Hui Cai, MD.
Papers13
Years published2014 to 2019
Dr. Giddens' papers by year, 2014 to 2019
Topics Dr. Giddens writes about most
- Glycosylation
- Immunoglobulin Fc Fragments
- Polysaccharides
- Immunoglobulin G
- Protein Engineering
- Bacterial Proteins
- Glycoside Hydrolases
- Rituximab
Dr. Giddens' most frequent co-authors
Recent publications by Dr. Giddens
Proc Natl Acad Sci U S A
Antibodies, MonoclonalAntibody-Dependent Cell CytotoxicityCetuximab
Int J Mol Sci
Antibodies, MonoclonalGlycosylationNicotiana
Cell Chem Biol
AntibodiesAntibody FormationEpitopes
Chem Commun (Camb)
Antibody SpecificityGlycopeptidesHIV-1
See who Dr. Giddens researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Giddens 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. John Giddens Jr. graduated from UC Davis School of Medicine
Dr. Giddens graduated from UC Davis School of Medicine in 1980.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John Giddens Jr. accepts plans from 8 insurance carriers
Dr. Giddens is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Elevance
- Excellus BlueCross BlueShield
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Giddens accepts, by number of carriers
- Medicare7
- PPO7
- HMO4
- EPO2
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. John Giddens Jr.'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) |
| 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. John Giddens Jr.
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 Giddens Jr.'s NPI number?
Dr. John Giddens Jr.'s NPI number is 1417934803. It was assigned on December 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Giddens Jr.?
Dr. John Giddens Jr. is an internist in Chula Vista, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Giddens Jr. practice?
Dr. Giddens practices at 542 Broadway, Chula Vista, CA 91910. Dr. Giddens' primary practice is Concentra Urgent Care - Chula Vista in Chula Vista, California. Dmand AI also links Dr. Giddens to 1 group practice or clinic.
What is Dr. John Giddens Jr.'s office phone number?
The practice phone on file for Dr. Giddens is (972) 364-8000.
What is Dr. John Giddens Jr.'s medical license number?
Dr. Giddens holds California license G45185.
What medical group is Dr. John Giddens Jr. part of?
Dr. Giddens is linked to Concentra Urgent Care.
Does Dr. John Giddens Jr. accept Medicare?
Yes. CMS data shows Dr. Giddens billed Medicare for 73 services in 2020, and Dr. Giddens accepts Medicare assignment.
How many Medicare patients does Dr. John Giddens Jr. see?
CMS counts 17 Medicare patients who saw Dr. Giddens in 2024, with an average age of 75.
Is Dr. John Giddens Jr. board certified?
Yes. Dr. Giddens is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. John Giddens Jr. bill to Medicare?
In 2020, Dr. Giddens' most billed Medicare services were office visit, established patient (99213) and office visit, new patient (99203).
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Where did Dr. John Giddens Jr. go to medical school?
Dr. Giddens graduated from UC Davis School of Medicine in 1980.
What drugs does Dr. John Giddens Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Giddens' most prescribed drugs by claims were Chlorpromazine HCl.
How long has Dr. John Giddens Jr. been practicing?
Dr. Giddens graduated from medical school in 1980, 46 years ago.
Does Dr. John Giddens Jr. do research?
Dmand AI links 13 publications to Dr. Giddens, published from 2014 to 2019.
Who does Dr. John Giddens Jr. publish with?
Dr. Giddens' most frequent co-authors are Hui Cai, MD (1 shared paper).
What insurance does Dr. John Giddens Jr. accept?
Dr. Giddens is in network with 8 carriers, including Blue Cross Blue Shield of Michigan, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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