Dr. Douglas M. Krahn, MD
- Medicare services, 2024
- 114
- Medicare patients, 2024
- 71
- Part D claims, 2024
- 31
- Hospital affiliations
- 1
- Industry payments
- $21,375
- Practice address
- 401 E Highland Ave, San Bernardino, CA 92404
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Seven Oaks Surgery Center LLC - HOPD
Acute Care Hospital outpatient department · San Bernardino, California
Find Dr. Krahn'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. Douglas M. Krahn is a general surgeon in San Bernardino, California
Dr. Krahn practices at Seven Oaks Surgery Center LLC - HOPD in San Bernardino, California.
Dr. Krahn's NPI, 1922029677, was assigned on July 21, 2006. Dr. Krahn graduated from UC Davis School of Medicine in 1996. Dr. Krahn's California license number on file is A64325.
- NPI
- 1922029677NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537213111
- NPI enumeration date
- July 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas M. Krahn practices at Seven Oaks Surgery Center LLC - HOPD in San Bernardino, California
Dr. Krahn's primary practice is Seven Oaks Surgery Center LLC - HOPD, at 401 E Highland Ave, San Bernardino, CA 92404.
- Seven Oaks Surgery Center LLC - HOPD401 E Highland Ave, San Bernardino, CA 92404
Source: Dmand AI Affiliation Data
Dr. Douglas M. Krahn is affiliated with 6 sites of care and 4 medical groups
Dr. Krahn's primary practice is Seven Oaks Surgery Center LLC - HOPD in San Bernardino, California. Dr. Krahn is also affiliated with Parkview Community Hospital Medical Center. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Krahn to 3 more group practices and clinics, 3 medical groups and 1 ambulatory surgery center, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Douglas M. Krahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Krahn practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Seven Oaks Surgery Center LLC - HOPD | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Douglas M. Krahn is one of 2,926 general surgeons in California
Surgery is Dr. Krahn's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Krahn is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Krahn's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Surgery, CaliforniaPrimary
- Florida license
General surgeons near Dr. Krahn
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. Douglas M. Krahn billed Medicare for 114 services in 2024
CMS data shows 114 Medicare services from Dr. Krahn across 5 procedure codes in 2024, for 71 Medicare patients. Medicare paid $11,057 for them.
Dr. Krahn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3222024: 11465%
Where Dr. Krahn's Medicare services took place, 2024
- In an office7263%
- In a facility4237%
Dr. Krahn compared with the California median for general surgeons, 2024
- Dr. Krahn
- California median
- Medicare services
- 114vs 16631% below
- Medicare patients
- 71vs 12141% below
- Part D claims
- 18vs 3447% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Krahn's most billed Medicare procedure codes, 2024
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. Krahn?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Krahn and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas M. Krahn treated 71 Medicare patients in 2024, average age 61
CMS counts 71 Medicare patients who saw Dr. Krahn in 2024. The largest group is under 65, with 32 patients. 75% of them have high blood pressure, and 68% have high cholesterol. 85% are also on Medicaid. Their average risk score is 3.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Krahn's median patient age at 48, with 80% women.
Dr. Krahn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Krahn's Medicare patients by sex, 2024
- Women4868%
- Men2332%
Chronic conditions among Dr. Krahn's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Diabetes66%
- Arthritis52%
- Mood disorders44%
- Chronic kidney disease41%
- Depression39%
- COPD38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Krahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women80%
- Men19%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas M. Krahn wrote 31 Medicare Part D claims in 2024
In 2024, Dr. Krahn wrote 31 Medicare Part D claims for 14 patients. 100% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $1,207 in total drug cost. In 2022, CMS named 17 claims across 1 drug.
Dr. Krahn's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 172023: 186%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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. Douglas M. Krahn takes part in Medicare
Dr. Krahn 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. Douglas M. Krahn received $21,375 in industry payments from 2016 to 2025
CMS Open Payments shows 204 general payments to Dr. Krahn from 12 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 49% of the total. Covidien LP paid the most, $11,833.
General payments to Dr. Krahn by program year, 2016 to 2025
General payments to Dr. Krahn by kind, 2016 to 2025
- Food and beverage$10,52749%
- Speaker and faculty fees$5,60026%
- Travel and lodging$5,24825%
Companies that paid Dr. Krahn the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas M. Krahn has 1 award and honors on record
Dmand AI lists 1 award for Dr. Krahn.
Awards and honors for Dr. Krahn
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Douglas M. Krahn graduated from UC Davis School of Medicine
Dr. Krahn graduated from UC Davis School of Medicine in 1996. Dr. Krahn is a member of ACS and SLS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Douglas M. Krahn accepts plans from 11 insurance carriers
Dr. Krahn is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- +3 more carriersWith a free account
Plan types Dr. Krahn accepts, by number of carriers
- Medicare9
- PPO7
- HMO6
- POS4
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Douglas M. Krahn'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 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) |
| 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. Douglas M. Krahn
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. Douglas M. Krahn's NPI number?
Dr. Douglas M. Krahn's NPI number is 1922029677. It was assigned on July 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas M. Krahn?
Dr. Douglas M. Krahn is a general surgeon in San Bernardino, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Douglas M. Krahn practice?
Dr. Krahn practices at 401 E Highland Ave, San Bernardino, CA 92404. Dr. Krahn's primary practice is Seven Oaks Surgery Center LLC - HOPD in San Bernardino, California. Dmand AI also links Dr. Krahn to 3 group practices and clinics, 3 medical groups and 1 ambulatory surgery center.
What is Dr. Douglas M. Krahn's medical license number?
Dr. Krahn's California license number on file is A64325, one of the licenses on file in 2 states.
Which states has Dr. Douglas M. Krahn been licensed in?
Dmand AI has state licenses on file for Dr. Krahn in California (1998 to 2025) and Florida (2001 to 2005).
Which hospitals is Dr. Douglas M. Krahn affiliated with?
Dr. Krahn is affiliated with Parkview Community Hospital Medical Center.
What medical group is Dr. Douglas M. Krahn part of?
Dr. Krahn is linked to Mercy Medical Group. Dmand AI links Dr. Krahn to 3 more medical groups.
Does Dr. Douglas M. Krahn accept Medicare?
Yes. CMS data shows Dr. Krahn billed Medicare for 114 services in 2024, and Dr. Krahn accepts Medicare assignment.
How many Medicare patients does Dr. Douglas M. Krahn see?
CMS counts 71 Medicare patients who saw Dr. Krahn in 2024, with an average age of 61.
Is Dr. Douglas M. Krahn board certified?
Yes. Dr. Krahn is board certified in surgery by the American Board of Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Douglas M. Krahn bill to Medicare?
In 2024, Dr. Krahn's most billed Medicare services were care management and other visits (99443), office visit, established patient (99213) and hospital inpatient care (99233).
Where did Dr. Douglas M. Krahn go to medical school?
Dr. Krahn graduated from UC Davis School of Medicine in 1996.
What drugs does Dr. Douglas M. Krahn prescribe most?
In 2023 Medicare Part D data, Dr. Krahn's most prescribed drugs by claims were Pantoprazole Sodium.
Has Dr. Douglas M. Krahn received payments from drug or device companies?
CMS Open Payments shows $21,375 in general payments to Dr. Krahn from 12 companies from 2016 to 2025. The largest total came from Covidien LP.
How long has Dr. Douglas M. Krahn been practicing?
Dr. Krahn graduated from medical school in 1996, 30 years ago.
What insurance does Dr. Douglas M. Krahn accept?
Dr. Krahn is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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