Dr. Nathan David Mjos, DO
- Medicare services, 2024
- 1,327
- Medicare patients, 2024
- 675
- Part D claims, 2024
- 938
- MIPS score, 2024
- 97
- Hospital affiliations
- 3
- Practice address
- 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345
- Practice phone
- Call (818) 898-4630
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sub-Acute Care Center
Skilled Nursing Facility - Hospital-Based · Mission Hills, California
Find Dr. Mjos' 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. Nathan David Mjos is an emergency medicine physician in Mission Hills, California
Dr. Mjos practices at Sub-Acute Care Center in Mission Hills, California.
Dr. Mjos' NPI, 1124354493, was assigned on October 21, 2009. Dr. Mjos holds California license 20A 10894.
- NPI
- 1124354493NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890972939
- NPI enumeration date
- October 21, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 898-4630
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan David Mjos practices at 2 locations in Mission Hills, California
Dr. Mjos' primary practice is Sub-Acute Care Center, at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 in Los Angeles County. The practice phone is (818) 898-4630. Dr. Mjos also practices at Providence Holy Cross Medical Center, 15031 W Rinaldi St, Mission Hills, CA 91345.
- Sub-Acute Care CenterPrimary11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 898-4630
- Providence Holy Cross Medical Center15031 W Rinaldi St, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 365-8051
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Nathan David Mjos is affiliated with 4 sites of care and 2 medical groups
Dr. Mjos' primary practice is Sub-Acute Care Center in Mission Hills, California. Dr. Mjos is also affiliated with Providence Holy Cross Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Mjos to 2 more hospitals 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 Dr. Nathan David Mjos' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mjos practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sub-Acute Care Center | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan David Mjos is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Mjos' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Mjos is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Mjos
Counts of emergency medicine physicians 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. Nathan David Mjos billed Medicare for 1,327 services in 2024
CMS data shows 1,327 Medicare services from Dr. Mjos across 9 procedure codes in 2024, for 675 Medicare patients. Medicare paid $100,215 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mjos' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6522024: 6672%
- Tests and treatments
- 2023: 4492024: 4422%
- Imaging
- 2023: 2412024: 21810%
Dr. Mjos compared with the California median for emergency medicine physicians, 2024
- Dr. Mjos
- California median
- Medicare services
- 1,327vs 2655.0 times
- Medicare patients
- 675vs 2432.8 times
- Part D claims
- 715vs 6211.5 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Mjos' 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. Mjos and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan David Mjos treated 675 Medicare patients in 2024, average age 75
CMS counts 675 Medicare patients who saw Dr. Mjos in 2024. The largest group is 75 to 84, with 204 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 65% are also on Medicaid. Their average risk score is 2.84, 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. Mjos' median patient age at 41, with 58% women.
Dr. Mjos' Medicare patients by age, 2024
Dr. Mjos' Medicare patients by sex, 2024
- Women38557%
- Men29043%
Chronic conditions among Dr. Mjos' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes55%
- Ischemic heart disease50%
- Heart failure45%
- Chronic kidney disease44%
- Mood disorders44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mjos' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan David Mjos wrote 938 Medicare Part D claims in 2024
In 2024, Dr. Mjos wrote 938 Medicare Part D claims for 529 patients. 93% of them were for generic drugs. CMS names the drug for 715 of them, across 19 drugs with 11 or more claims each, at $4,402 in total drug cost. In 2023, CMS named 603 claims across 18 drugs.
Dr. Mjos' Part D claims by kind of drug, 2024
- Generic874 claims93%
- Brand-name and other64 claims7%
Dr. Mjos' 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. Mjos' Part D claims, 2024
- Opioids7%64 of 938 claims
- Antibiotics19%180 of 938 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: 6032024: 71519%
Drugs named by CMS: 19 in 2024, 18 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. Nathan David Mjos scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Mjos for performance year 2024, reported as part of a group. Dr. Mjos accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mjos' MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Nathan David Mjos received $2,088 in industry payments from 2016 to 2021
CMS Open Payments shows 7 general payments to Dr. Mjos from 5 drug and device companies from 2016 to 2021. Honoraria make up the largest share, 72% of the total. Edwards Lifesciences Corporation paid the most, $1,676.
General payments to Dr. Mjos by program year, 2016 to 2021
General payments to Dr. Mjos by kind, 2016 to 2021
- Honoraria$1,50072%
- Food and beverage$58828%
Companies that paid Dr. Mjos the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nathan David Mjos'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)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 Dr. Nathan David Mjos
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. Nathan David Mjos' NPI number?
Dr. Nathan David Mjos' NPI number is 1124354493. It was assigned on October 21, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan David Mjos?
Dr. Nathan David Mjos is an emergency medicine physician in Mission Hills, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nathan David Mjos practice?
Dr. Mjos practices at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345. Dr. Mjos also practices at 15031 W Rinaldi St, Mission Hills, CA 91345. Dr. Mjos' primary practice is Sub-Acute Care Center in Mission Hills, California. Dmand AI also links Dr. Mjos to 2 hospitals and 1 medical group.
What is Dr. Nathan David Mjos' office phone number?
The practice phone on file for Dr. Mjos is (818) 898-4630.
What is Dr. Nathan David Mjos' medical license number?
Dr. Mjos holds California license 20A 10894.
Which hospitals is Dr. Nathan David Mjos affiliated with?
Dr. Mjos is affiliated with Providence Holy Cross Medical Center. Dmand AI links Dr. Mjos to 2 more hospitals.
What medical group is Dr. Nathan David Mjos part of?
Dr. Mjos is linked to Vituity. Dmand AI links Dr. Mjos to 1 more medical group.
Does Dr. Nathan David Mjos accept Medicare?
Yes. CMS data shows Dr. Mjos billed Medicare for 1,327 services in 2024, and Dr. Mjos accepts Medicare assignment.
What is Dr. Nathan David Mjos' MIPS score?
Dr. Mjos' MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dr. Nathan David Mjos see?
CMS counts 675 Medicare patients who saw Dr. Mjos in 2024, with an average age of 75.
Show 4 more questionsShow fewer questions
What services does Dr. Nathan David Mjos bill to Medicare?
In 2024, Dr. Mjos' most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
What drugs does Dr. Nathan David Mjos prescribe most?
In 2024 Medicare Part D data, Dr. Mjos' most prescribed drugs by claims were Gabapentin, Ondansetron ODT and Naproxen.
Has Dr. Nathan David Mjos received payments from drug or device companies?
CMS Open Payments shows $2,088 in general payments to Dr. Mjos from 5 companies from 2016 to 2021. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Nathan David Mjos been practicing?
Dr. Mjos graduated from medical school in 2008, 18 years ago.
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