Dr. Samir D. Johna, MD

  • Fontana, CA
  • General surgeon
NPI1063571628PAC ID4981764826
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
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Personal email
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Mobile number
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Social profiles

Primary practice

Fontana Medical Center

Hospital · Fontana, California

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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.

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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 and contact details
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
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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.

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.

EHR by site
SiteEHR vendor and product
Fontana Medical CenterAvailable with a free account

Source: Dmand AI Technology Install Data

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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, CaliforniaPrimaryLicense A52638 · 1993 to 2025 · taxonomy 208600000X

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.

Part D claims, 202496
Drugs named by CMS3
Total drug cost$611
Part D patients41

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.

See all prescribing by Dr. Johna

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)

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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.

Papers40
Years published2013 to 2023

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

Recent publications by Dr. Johna

See all 40 publications and co-authors

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.

How network discovery works

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.

See all payments to Dr. Johna

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

  1. 2011
    • CMS Stage 1 2012
  2. 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.

  1. Medical schoolUniversity of Baghdad College of Medicine
  2. Board certified in surgeryAmerican Board of 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

  1. EPO1
  2. HMO1
  3. Medicare1
  4. POS1

Source: Dmand AI Insurance Network Data

Sources for Dr. Samir D. Johna's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand 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.

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