Dr. Dag Peter Alexander Linna, MD
- Medicare services, 2024
- 853
- Medicare patients, 2024
- 129
- Part D claims, 2024
- 2,189
- Hospital affiliations
- 3
- Industry payments
- $433
- Practice address
- 100 W. California Blvd, Pasadena, CA 91105
- Practice phone
- Call (626) 397-2618
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Huntington Hospital - Unit
Acute Care Hospital-Unit · Pasadena, California
Find Dr. Linna's professional email, personal email and mobile number
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Dr. Dag Peter Alexander Linna is an internist in Pasadena, California
Dr. Linna practices at Huntington Hospital - Unit in Pasadena, California.
Dr. Linna's NPI, 1881742062, was assigned on January 6, 2007. Dr. Linna graduated from Penn State College of Medicine in 1990. Dr. Linna's California license number on file is G73037.
- NPI
- 1881742062NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2961425855
- NPI enumeration date
- January 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (626) 397-2618
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dag Peter Alexander Linna practices at Huntington Hospital - Unit in Pasadena, California
Dr. Linna's primary practice is Huntington Hospital - Unit, at 100 W. California Blvd, Pasadena, CA 91105 in Los Angeles County. The practice phone is (626) 397-2618.
- Huntington Hospital - Unit100 W. California Blvd, Pasadena, CA 91105 · Los Angeles CountyPhone(626) 397-2618
Source: Dmand AI Affiliation Data
Dr. Dag Peter Alexander Linna is affiliated with 3 sites of care
Dr. Linna's primary practice is Huntington Hospital - Unit in Pasadena, California. Dr. Linna is also affiliated with Huntington Hospital. Dmand AI also links Dr. Linna to 1 more hospital, named with a free account. Dr. Linna's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Dag Peter Alexander Linna's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Linna practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Huntington Hospital - Unit | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dag Peter Alexander Linna is one of 16,751 internists in California
Internal medicine is Dr. Linna's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Linna is board certified in internal medicine by the American Board of Internal Medicine. Dr. Linna has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute sinusitis, acute skin infection, alzheimer's disease, anxiety, atrial fibrillation and flutter, bladder disease and bronchitis among the conditions Dr. Linna treats.
Internists near Dr. Linna
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. Dag Peter Alexander Linna billed Medicare for 853 services in 2024
CMS data shows 853 Medicare services from Dr. Linna across 13 procedure codes in 2024, for 129 Medicare patients. Medicare paid $68,557 for them.
Dr. Linna's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6692024: 6611%
- Other services
- 2023: 1012024: 983%
- Tests and treatments
- 2023: 962024: 942%
Where Dr. Linna's Medicare services took place, 2024
- In an office59069%
- In a facility26331%
Dr. Linna compared with the California median for internists, 2024
- Dr. Linna
- California median
- Medicare services
- 853vs 3612.4 times
- Medicare patients
- 129vs 15115% below
- Part D claims
- 1,750vs 4214.2 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Linna'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Linna and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Dag Peter Alexander Linna treated 129 Medicare patients in 2024, average age 77
CMS counts 129 Medicare patients who saw Dr. Linna in 2024. The largest group is 75 to 84, with 47 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Linna's median patient age at 55, with 40% women.
Dr. Linna's Medicare patients by age, 2024
Dr. Linna's Medicare patients by sex, 2024
- Women6651%
- Men6349%
Chronic conditions among Dr. Linna's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Ischemic heart disease45%
- Diabetes36%
- Chronic kidney disease28%
- Mood disorders25%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Linna's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women40%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dag Peter Alexander Linna wrote 2,189 Medicare Part D claims in 2024
In 2024, Dr. Linna wrote 2,189 Medicare Part D claims for 178 patients. 87% of them were for generic drugs. CMS names the drug for 1,750 of them, across 48 drugs with 11 or more claims each, at $109,991 in total drug cost. In 2023, CMS named 1,939 claims across 54 drugs.
Dr. Linna's Part D claims by kind of drug, 2024
- Generic1,904 claims87%
- Brand-name and other285 claims13%
Dr. Linna'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. Linna's Part D claims, 2024
- Opioids1%14 of 2,189 claims
- Antibiotics2%40 of 2,189 claims
- Antipsychotics, patients 65 and over1%30 of 2,189 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: 1,9392024: 1,75010%
Drugs named by CMS: 48 in 2024, 54 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
Dr. Dag Peter Alexander Linna offers telehealth to Medicare patients
Dr. Linna accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Linna as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Dag Peter Alexander Linna received $433 in industry payments from 2016 to 2025
CMS Open Payments shows 8 general payments to Dr. Linna from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Amgen Inc. paid the most, $121.
General payments to Dr. Linna by program year, 2016 to 2025
General payments to Dr. Linna by kind, 2016 to 2025
- Food and beverage$42398%
- Education$102%
Companies that paid Dr. Linna 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. Dag Peter Alexander Linna graduated from Penn State College of Medicine
Dr. Linna graduated from Penn State College of Medicine in 1990.
- Medical school
- Board certified in internal medicine
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Dag Peter Alexander Linna accepts plans from 10 insurance carriers
Dr. Linna is in network with 10 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
- Blue Cross Blue Shield of Massachusetts
- HCSC
- LA Care
- Regence Health Plans
- CMS Medicare
- +2 more carriersWith a free account
Plan types Dr. Linna accepts, by number of carriers
- Medicare9
- PPO6
- HMO5
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Dag Peter Alexander Linna'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Dag Peter Alexander Linna
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. Dag Peter Alexander Linna's NPI number?
Dr. Dag Peter Alexander Linna's NPI number is 1881742062. It was assigned on January 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Dag Peter Alexander Linna?
Dr. Dag Peter Alexander Linna is an internist in Pasadena, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Dag Peter Alexander Linna practice?
Dr. Linna practices at 100 W. California Blvd, Pasadena, CA 91105. Dr. Linna's primary practice is Huntington Hospital - Unit in Pasadena, California. Dmand AI also links Dr. Linna to 1 hospital.
What is Dr. Dag Peter Alexander Linna's office phone number?
The practice phone on file for Dr. Linna is (626) 397-2618.
What is Dr. Dag Peter Alexander Linna's medical license number?
Dr. Linna's California license number on file is G73037.
Which hospitals is Dr. Dag Peter Alexander Linna affiliated with?
Dr. Linna is affiliated with Huntington Hospital. Dmand AI links Dr. Linna to 2 more hospitals.
Does Dr. Dag Peter Alexander Linna accept Medicare?
Yes. CMS data shows Dr. Linna billed Medicare for 853 services in 2024, and Dr. Linna accepts Medicare assignment.
Does Dr. Dag Peter Alexander Linna offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Linna as offering telehealth services.
How many Medicare patients does Dr. Dag Peter Alexander Linna see?
CMS counts 129 Medicare patients who saw Dr. Linna in 2024, with an average age of 77.
Is Dr. Dag Peter Alexander Linna board certified?
Yes. Dr. Linna is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Dag Peter Alexander Linna bill to Medicare?
In 2024, Dr. Linna's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99232) and office visit, established patient (99213).
Where did Dr. Dag Peter Alexander Linna go to medical school?
Dr. Linna graduated from Penn State College of Medicine in 1990.
What drugs does Dr. Dag Peter Alexander Linna prescribe most?
In 2024 Medicare Part D data, Dr. Linna's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Rosuvastatin Calcium.
Has Dr. Dag Peter Alexander Linna received payments from drug or device companies?
CMS Open Payments shows $433 in general payments to Dr. Linna from 7 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Dag Peter Alexander Linna been practicing?
Dr. Linna graduated from medical school in 1990, 36 years ago.
What insurance does Dr. Dag Peter Alexander Linna accept?
Dr. Linna is in network with 10 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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