Dr. Samir D. Johna, MD
- Part D claims, 2024
- 96
- Publications
- 40
- Hospital affiliations
- 1
- Industry payments
- $370
- Medical group
- 1
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johna'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. Samir D. Johna is a general surgeon in Fontana, California
Dr. Johna practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Johna's NPI, 1063571628, was assigned on December 8, 2006. Dr. Johna graduated from University of Baghdad College of Medicine in 1983. Dr. Johna's California license number on file is A52638.
- NPI
- 1063571628NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981764826
- NPI enumeration date
- December 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Samir D. Johna practices at Fontana Medical Center in Fontana, California
Dr. Johna's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Samir D. Johna is affiliated with 1 site of care and 1 medical group
Dr. Johna's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Samir D. Johna's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johna practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Samir D. Johna is one of 2,926 general surgeons in California
Surgery is Dr. Johna's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Johna is board certified in surgery by the American Board of Surgery. Dr. Johna has a license on file in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Johna
Counts of general 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. Samir D. Johna's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts Dr. Johna's median patient age at 53, with 58% women.
Dr. Johna'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
- Women58%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Samir D. Johna wrote 96 Medicare Part D claims in 2024
In 2024, Dr. Johna wrote 96 Medicare Part D claims for 41 patients. 96% of them were for generic drugs. CMS names the drug for 71 of them, across 3 drugs with 11 or more claims each, at $611 in total drug cost. In 2023, CMS named 135 claims across 3 drugs.
Dr. Johna's Part D claims by kind of drug, 2024
- Generic92 claims96%
- Brand-name and other4 claims4%
Dr. Johna'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. Johna's Part D claims, 2024
- Opioids24%23 of 96 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: 1352024: 7147%
Drugs named by CMS: 3 in 2024, 3 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. Samir D. Johna takes part in Medicare
Dr. Johna 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Samir D. Johna has 40 publications on record
Dmand AI links 40 papers to Dr. Johna, published from 2013 to 2023. 2019 was the busiest year, with 5. The most frequent topics are Laparoscopy, Postoperative Complications and Cholecystectomy, Laparoscopic. Dr. Johna has published most often in Perm J. Dr. Johna's most frequent co-authors are Mohammed Hassan Al-Temimi, MD, Charles Nathan Trujillo, MD and Ahmed Nowaf Dehal, MD.
Dr. Johna's papers by year, 2013 to 2023
Topics Dr. Johna writes about most
- Laparoscopy
- Postoperative Complications
- Cholecystectomy, Laparoscopic
- Clinical Competence
- Internship and Residency
- Accreditation
- Cholangiopancreatography, Endoscopic Retrograde
- Education, Medical, Graduate
Dr. Johna's most frequent co-authors
- Mohammed Hassan Al-Temimi, MD11 shared papers
- Charles Nathan Trujillo, MD7 shared papers
- Ahmed Nowaf Dehal, MD6 shared papers
Recent publications by Dr. Johna
See who Dr. Johna researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johna works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Samir D. Johna received $370 in industry payments in 2016
CMS Open Payments shows 3 general payments to Dr. Johna from 3 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Torax Medical, Inc. paid the most, $155.
Companies that paid Dr. Johna 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. Samir D. Johna has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Johna, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Johna
- 2011
- CMS Stage 1 2012
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Samir D. Johna graduated from University of Baghdad College of Medicine
Dr. Johna graduated from University of Baghdad College of Medicine in 1983. Dr. Johna is a member of ACS and SLS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Samir D. Johna accepts plans from 2 insurance carriers
Dr. Johna 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. Johna accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Samir D. Johna'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 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) |
| 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. Samir D. Johna
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. Samir D. Johna's NPI number?
Dr. Samir D. Johna's NPI number is 1063571628. It was assigned on December 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Samir D. Johna?
Dr. Samir D. Johna is a general surgeon in Fontana, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Samir D. Johna practice?
Dr. Johna practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Johna's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
What is Dr. Samir D. Johna's office phone number?
The practice phone on file for Dr. Johna is (909) 427-5000.
What is Dr. Samir D. Johna's medical license number?
Dr. Johna's California license number on file is A52638.
Which hospitals is Dr. Samir D. Johna affiliated with?
Dr. Johna practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Samir D. Johna part of?
Dr. Johna is linked to Southern California Permanente Medical Group.
Does Dr. Samir D. Johna accept Medicare?
Yes. CMS lists Dr. Johna as accepting Medicare assignment.
Is Dr. Samir D. Johna board certified?
Yes. Dr. Johna is board certified in surgery by the American Board of Surgery.
Where did Dr. Samir D. Johna go to medical school?
Dr. Johna graduated from University of Baghdad College of Medicine in 1983.
Show 6 more questionsShow fewer questions
What drugs does Dr. Samir D. Johna prescribe most?
In 2024 Medicare Part D data, Dr. Johna's most prescribed drugs by claims were Gabapentin, Meloxicam and Hydrocodone-Acetaminophen.
Has Dr. Samir D. Johna received payments from drug or device companies?
CMS Open Payments shows $370 in general payments to Dr. Johna from 3 companies from 2016 to 2016. The largest total came from Torax Medical, Inc.
How long has Dr. Samir D. Johna been practicing?
Dr. Johna graduated from medical school in 1983, 43 years ago.
Does Dr. Samir D. Johna do research?
Dmand AI links 40 publications to Dr. Johna, published from 2013 to 2023.
Who does Dr. Samir D. Johna publish with?
Dr. Johna's most frequent co-authors are Mohammed Hassan Al-Temimi, MD (11 shared papers), Charles Nathan Trujillo, MD (7 shared papers) and Ahmed Nowaf Dehal, MD (6 shared papers).
What insurance does Dr. Samir D. Johna accept?
Dr. Johna 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.
Selling to surgery practices?
See general surgeons in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card