AcetabulumArthroplasty, Replacement, HipHip Joint
Dr. Cesar Anthony Atienza Jr., MD
NPI1841343258PAC ID6406946318
- Part D claims, 2024
- 136
- Publications
- 2
- Industry payments
- $18
- Medical group
- 1
- Insurance carriers
- 2
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Dr. Atienza's professional email, personal email and mobile number
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Dr. Cesar Anthony Atienza Jr. is an adult reconstructive orthopaedic surgery physician in Santa Clara, California
Dr. Atienza practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Atienza's NPI, 1841343258, was assigned on January 19, 2007. Dr. Atienza graduated from University Of Louisville School Of Medicine in 2001. Dr. Atienza holds California license A96046.
NPI and contact details
- NPI
- 1841343258NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406946318
- NPI enumeration date
- January 19, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Cesar Anthony Atienza Jr. practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Atienza's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Cesar Anthony Atienza Jr. is affiliated with 1 site of care and 1 medical group
Dr. Atienza's primary practice is Permanente Medical Group Inc in Santa Clara, California. The medical group on file is The Permanente Medical Group, Inc.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Cesar Anthony Atienza Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Atienza practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Cesar Anthony Atienza Jr. is one of 142 adult reconstructive orthopaedic surgery physicians in California
Adult reconstructive orthopaedic surgery is Dr. Atienza's primary specialty in the NPI Registry, under taxonomy code 207XS0114X. Dr. Atienza is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery. Dr. Atienza is licensed in California.
Specialties and state licenses
- Adult reconstructive orthopaedic surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists knee replacement among the conditions Dr. Atienza treats.
Adult reconstructive orthopaedic surgery physicians near Dr. Atienza
Counts of adult reconstructive orthopaedic surgery physicians with a Dmand AI profile, by place and practice. Each opens the list.
142adult reconstructive orthopaedic surgery physicians in California
3adult reconstructive orthopaedic surgery physicians in Santa Clara
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Cesar Anthony Atienza Jr.'s patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Atienza's median patient age at 70, with 65% women.
Dr. Atienza's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women65%
- Men35%
Source: Dmand AI Patient Panel Data
Dr. Cesar Anthony Atienza Jr. wrote 136 Medicare Part D claims in 2024
In 2024, Dr. Atienza wrote 136 Medicare Part D claims for 61 patients. 100% of them were for generic drugs. CMS names the drug for 115 of them, across 3 drugs with 11 or more claims each, at $1,143 in total drug cost. In 2023, CMS named 211 claims across 4 drugs.
Part D claims, 2024136
Drugs named by CMS3
Total drug cost$1,143
Part D patients61
Dr. Atienza'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. Atienza's Part D claims, 2024
- Opioids11%15 of 136 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: 2112024: 11545%
Drugs named by CMS: 3 in 2024, 4 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. Cesar Anthony Atienza Jr. takes part in Medicare
Dr. Atienza 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. Cesar Anthony Atienza Jr. has 2 publications on record
Dmand AI links 2 papers to Dr. Atienza in 2009. The most frequent topics are Hip Prosthesis, Polyethylene and Prosthesis Failure. Dr. Atienza's most frequent co-author is William Joseph Maloney.
Papers2
Topics Dr. Atienza writes about most
- Hip Prosthesis
- Polyethylene
- Prosthesis Failure
Dr. Atienza's most frequent co-authors
Recent publications by Dr. Atienza
J Surg Orthop Adv
Hip ProsthesisOxidation-ReductionPolyethylene
See who Dr. Atienza researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Atienza works with, so you can find a warm path to the right adult reconstructive orthopaedic surgery physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Cesar Anthony Atienza Jr. received $18 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Atienza from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Ipsen Biopharmaceuticals, Inc paid the most, $18.
Companies that paid Dr. Atienza the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Cesar Anthony Atienza Jr. graduated from University Of Louisville School Of Medicine
Dr. Atienza graduated from University Of Louisville School Of Medicine in 2001.
- Medical school
- Board certified in orthopaedic surgery
Source: Dmand AI Professional Profile Data
Dr. Cesar Anthony Atienza Jr. accepts plans from 2 insurance carriers
Dr. Atienza 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. Atienza accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Cesar Anthony Atienza 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 | 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 |
| 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. Cesar Anthony Atienza 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. Cesar Anthony Atienza Jr.'s NPI number?
Dr. Cesar Anthony Atienza Jr.'s NPI number is 1841343258. It was assigned on January 19, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Cesar Anthony Atienza Jr.?
Dr. Cesar Anthony Atienza Jr. is an adult reconstructive orthopaedic surgery physician in Santa Clara, California. The primary specialty in the NPI Registry is Adult Reconstructive Orthopaedic Surgery Physician (taxonomy code 207XS0114X).
Where does Dr. Cesar Anthony Atienza Jr. practice?
Dr. Atienza practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Atienza's primary practice is Permanente Medical Group Inc in Santa Clara, California.
What is Dr. Cesar Anthony Atienza Jr.'s office phone number?
The practice phone on file for Dr. Atienza is (408) 851-1000.
What is Dr. Cesar Anthony Atienza Jr.'s medical license number?
Dr. Atienza holds California license A96046.
What medical group is Dr. Cesar Anthony Atienza Jr. part of?
Dr. Atienza is linked to The Permanente Medical Group, Inc.
Does Dr. Cesar Anthony Atienza Jr. accept Medicare?
Yes. CMS lists Dr. Atienza as accepting Medicare assignment.
Is Dr. Cesar Anthony Atienza Jr. board certified?
Yes. Dr. Atienza is board certified in orthopaedic surgery by the American Board of Orthopaedic Surgery.
Where did Dr. Cesar Anthony Atienza Jr. go to medical school?
Dr. Atienza graduated from University Of Louisville School Of Medicine in 2001.
What drugs does Dr. Cesar Anthony Atienza Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Atienza's most prescribed drugs by claims were Celecoxib, Meloxicam and Oxycodone HCl.
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Has Dr. Cesar Anthony Atienza Jr. received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Atienza from 1 company from 2016 to 2016. The largest total came from Ipsen Biopharmaceuticals, Inc.
How long has Dr. Cesar Anthony Atienza Jr. been practicing?
Dr. Atienza graduated from medical school in 2001, 25 years ago.
Does Dr. Cesar Anthony Atienza Jr. do research?
Dmand AI links 2 publications to Dr. Atienza.
Who does Dr. Cesar Anthony Atienza Jr. publish with?
Dr. Atienza's most frequent co-authors are William Joseph Maloney (1 shared paper).
What insurance does Dr. Cesar Anthony Atienza Jr. accept?
Dr. Atienza 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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