Frank Tarn
- Medicare services, 2024
- 811
- Medicare patients, 2026
- 481
- Part D claims, 2026
- 275
- MIPS score, 2026
- 75
- Hospital affiliations
- 2
- Practice address
- 18300 Roscoe Blvd, Northridge, CA 91325
- Practice phone
- Call (818) 885-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Frank Tarn'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.
Frank Tarn is a general surgeon in Northridge, California
Frank Tarn practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health.
Frank Tarn's NPI, 1841785771, was assigned on June 23, 2018. Frank Tarn holds Michigan license 5101024287.
- NPI
- 1841785771NPI Registry (opens in a new tab)
- NPI enumeration date
- June 23, 2018
- NPI status
- Active
- Practice phone
- (818) 885-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Frank Tarn practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California
Frank Tarn's primary practice is Dignity Health - Northridge Hospital Medical Center, at 18300 Roscoe Blvd, Northridge, CA 91325 in Los Angeles County. The practice phone is (818) 885-8500.
- Dignity Health - Northridge Hospital Medical Center18300 Roscoe Blvd, Northridge, CA 91325 · Los Angeles CountyPhone(818) 885-8500
Source: Dmand AI Affiliation Data
Frank Tarn is affiliated with 2 sites of care and 2 medical groups
Frank Tarn's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Frank Tarn to 1 more hospital and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Frank Tarn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Frank Tarn practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Northridge Hospital Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Frank Tarn is one of 2,926 general surgeons in California
Surgery is Frank Tarn's primary specialty in the NPI Registry, under taxonomy code 208600000X. Frank Tarn is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Frank Tarn
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
Frank Tarn billed Medicare for 811 services in 2024
CMS data shows 811 Medicare services from Frank Tarn across 4 procedure codes in 2024, for 481 Medicare patients. Medicare paid $72,636 for them. Every service was in a facility, such as a hospital, rather than an office.
Frank Tarn's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1062024: 503375%
- Tests and treatments
- 2023: 632024: 308389%
Frank Tarn compared with the California median for general surgeons, 2024
- Frank Tarn
- California median
- Medicare services
- 811vs 1664.9 times
- Medicare patients
- 481vs 1214.0 times
- Part D claims
- 195vs 345.7 times
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Frank Tarn'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Frank Tarn treated 481 Medicare patients in 2026, average age 74
CMS counts 481 Medicare patients who saw Frank Tarn in 2026. The largest group is 75 to 84, with 159 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 68% are also on Medicaid. Their average risk score is 2.97, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Frank Tarn's median patient age at 38, with 55% women.
Frank Tarn's Medicare patients by age, 2026
Frank Tarn's Medicare patients by sex, 2026
- Women27257%
- Men20943%
Chronic conditions among Frank Tarn's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Ischemic heart disease63%
- Diabetes58%
- Mood disorders52%
- Depression49%
- Heart failure48%
Share of Medicare patients with each condition. A patient can have several.
Frank Tarn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Frank Tarn wrote 275 Medicare Part D claims in 2026
In 2026, Frank Tarn wrote 275 Medicare Part D claims for 196 patients. 94% of them were for generic drugs. CMS names the drug for 195 of them, across 9 drugs with 11 or more claims each, at $1,066 in total drug cost. In 2023, CMS named 18 claims across 1 drug.
Frank Tarn's Part D claims by kind of drug, 2026
- Generic258 claims94%
- Brand-name17 claims6%
Frank Tarn'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 Frank Tarn's Part D claims, 2026
- Opioids5%13 of 275 claims
- Antibiotics30%82 of 275 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: 182024: 195983%
Drugs named by CMS: 9 in 2024, 1 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), 2026 data
Frank Tarn scored 75 out of 100 in Medicare's MIPS program for 2026
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Frank Tarn for performance year 2026, reported as part of a group.
- MIPS final score, 2026
- 75 of 100
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2026 data
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Frank Tarn received $285 in industry payments from 2018 to 2020
CMS Open Payments shows 3 general payments to Frank Tarn from 3 drug and device companies from 2018 to 2020. Food and beverage make up the largest share, 100% of the total. KCI USA, Inc. paid the most, $112.
General payments to Frank Tarn by program year, 2018 to 2020
Companies that paid Frank Tarn the most, 2018 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Frank Tarn'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 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 | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Frank Tarn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Frank Tarn's NPI number?
Frank Tarn's NPI number is 1841785771. It was assigned on June 23, 2018, and it is active in the NPI Registry.
What does Frank Tarn specialize in?
Frank Tarn is a general surgeon in Northridge, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Frank Tarn practice?
Frank Tarn practices at 18300 Roscoe Blvd, Northridge, CA 91325. Frank Tarn's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. Dmand AI also links Frank Tarn to 1 hospital and 1 medical group, and a free account names each one.
What is Frank Tarn's office phone number?
The practice phone on file for Frank Tarn is (818) 885-8500. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Frank Tarn's email address?
Dmand AI checks professional and personal email addresses for Frank Tarn through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Frank Tarn's medical license number?
Frank Tarn holds Michigan license 5101024287.
Which hospitals is Frank Tarn affiliated with?
Frank Tarn practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California. Dmand AI links Frank Tarn to 1 more hospital, named with a free account.
What medical group is Frank Tarn part of?
Frank Tarn is linked to Southern California Permanente Medical Group. Dmand AI links Frank Tarn to 1 more medical group, named with a free account.
Who does Frank Tarn practice with?
Dmand AI links 17,030 HCPs to Frank Tarn's primary medical group, 280 of them general surgeons. A free account lists them, with verified contacts.
Does Frank Tarn accept Medicare?
Yes. CMS data shows Frank Tarn billed Medicare for 811 services in 2024.
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What is Frank Tarn's MIPS score?
Frank Tarn's MIPS final score for performance year 2026 is 75 out of 100, reported as part of a group.
How many Medicare patients does Frank Tarn see?
CMS counts 481 Medicare patients who saw Frank Tarn in 2026, with an average age of 74.
What services does Frank Tarn bill to Medicare?
In 2024, Frank Tarn's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
What drugs does Frank Tarn prescribe most?
In 2024 Medicare Part D data, Frank Tarn's most prescribed drugs by claims were Ondansetron ODT, Cefuroxime and Meclizine HCl.
Has Frank Tarn received payments from drug or device companies?
CMS Open Payments shows $285 in general payments to Frank Tarn from 3 companies from 2018 to 2020. The largest total came from KCI USA, Inc.
How long has Frank Tarn been practicing?
Frank Tarn graduated from medical school in 2018, 8 years ago.
What EHR does Frank Tarn's practice use?
Dmand AI tracks the EHR system at Dignity Health - Northridge Hospital Medical Center and at 1 more site and 1 medical group. The vendor and product are available with a free Dmand AI account.
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