Dr. Nathan Henderson Parker, MD
- Medicare services, 2024
- 779
- Medicare patients, 2024
- 525
- Part D claims, 2024
- 265
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 914 Pine Street, Mount Shasta, CA 96067
- Practice phone
- Call (530) 926-6111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Parker's professional email, personal email and mobile number
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Dr. Nathan Henderson Parker is an emergency medicine physician in Mount Shasta, California
Dr. Parker practices at Dignity Health - Mercy Medical Center Mount Shasta in Mount Shasta, California, part of CommonSpirit Health.
Dr. Parker's NPI, 1881987436, was assigned on May 16, 2011. Dr. Parker graduated from University of Southern California Keck School of Medicine in 2011. Dr. Parker holds California license A122594.
- NPI
- 1881987436NPI Registry (opens in a new tab)
- NPI enumeration date
- May 16, 2011
- NPI status
- Active
- Practice phone
- (530) 926-6111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nathan Henderson Parker practices at Dignity Health - Mercy Medical Center Mount Shasta in Mount Shasta, California
Dr. Parker's primary practice is Dignity Health - Mercy Medical Center Mount Shasta, at 914 Pine Street, Mount Shasta, CA 96067 in Siskiyou County. The practice phone is (530) 926-6111.
- Dignity Health - Mercy Medical Center Mount Shasta914 Pine Street, Mount Shasta, CA 96067 · Siskiyou CountyPhone(530) 926-6111
Source: Dmand AI Affiliation Data
Dr. Nathan Henderson Parker is affiliated with 1 site of care and 2 medical groups
Dr. Parker's primary practice is Dignity Health - Mercy Medical Center Mount Shasta in Mount Shasta, California, part of CommonSpirit Health. The medical group on file is Vituity. Dmand AI also links Dr. Parker to 1 more medical group, 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 Henderson Parker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Parker practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy Medical Center Mount Shasta | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan Henderson Parker is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Parker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Parker is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Parker
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 Henderson Parker billed Medicare for 779 services in 2024
CMS data shows 779 Medicare services from Dr. Parker across 5 procedure codes in 2024, for 525 Medicare patients. Medicare paid $65,686 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Parker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6212024: 6151%
- Tests and treatments
- 2023: 1422024: 16415%
- Surgery
- 2023: 112024: 0100%
Dr. Parker compared with the California median for emergency medicine physicians, 2024
- Dr. Parker
- California median
- Medicare services
- 779vs 2652.9 times
- Medicare patients
- 525vs 2432.2 times
- Part D claims
- 97vs 6256% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Parker'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
Dr. Nathan Henderson Parker treated 525 Medicare patients in 2024, average age 73
CMS counts 525 Medicare patients who saw Dr. Parker in 2024. The largest group is 65 to 74, with 218 patients. 69% of them have high cholesterol, and 66% have high blood pressure. 38% are also on Medicaid. Their average risk score is 1.16, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Parker's median patient age at 61, with 53% women.
Dr. Parker's Medicare patients by age, 2024
Dr. Parker's Medicare patients by sex, 2024
- Women26851%
- Men25749%
Chronic conditions among Dr. Parker's Medicare patients, 2024
- High cholesterol69%
- High blood pressure66%
- Arthritis40%
- Anxiety31%
- Mood disorders28%
- Diabetes27%
- Ischemic heart disease25%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Parker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan Henderson Parker wrote 265 Medicare Part D claims in 2024
In 2024, Dr. Parker wrote 265 Medicare Part D claims for 182 patients. 92% of them were for generic drugs. CMS names the drug for 97 of them, across 4 drugs with 11 or more claims each, at $655 in total drug cost. In 2023, CMS named 98 claims across 4 drugs.
Dr. Parker's Part D claims by kind of drug, 2024
- Generic244 claims92%
- Brand-name21 claims8%
Dr. Parker'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. Parker's Part D claims, 2024
- Opioids14%36 of 265 claims
- Antibiotics38%101 of 265 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: 982024: 971%
Drugs named by CMS: 4 in 2024, 4 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 Henderson Parker scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Parker for performance year 2024, reported as part of a group.
- MIPS final score, 2024
- 75 of 100
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Nathan Henderson Parker graduated from University of Southern California Keck School of Medicine
Dr. Parker graduated from University of Southern California Keck School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathan Henderson Parker'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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Nathan Henderson Parker
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 Henderson Parker's NPI number?
Dr. Nathan Henderson Parker's NPI number is 1881987436. It was assigned on May 16, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan Henderson Parker?
Dr. Nathan Henderson Parker is an emergency medicine physician in Mount Shasta, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nathan Henderson Parker practice?
Dr. Parker practices at 914 Pine Street, Mount Shasta, CA 96067. Dr. Parker's primary practice is Dignity Health - Mercy Medical Center Mount Shasta in Mount Shasta, California, part of CommonSpirit Health. Dmand AI also links Dr. Parker to 1 medical group.
What is Dr. Nathan Henderson Parker's office phone number?
The practice phone on file for Dr. Parker is (530) 926-6111.
What is Dr. Nathan Henderson Parker's medical license number?
Dr. Parker holds California license A122594.
Which hospitals is Dr. Nathan Henderson Parker affiliated with?
Dr. Parker practices at Dignity Health - Mercy Medical Center Mount Shasta in Mount Shasta, California.
What medical group is Dr. Nathan Henderson Parker part of?
Dr. Parker is linked to Vituity. Dmand AI links Dr. Parker to 1 more medical group.
Does Dr. Nathan Henderson Parker accept Medicare?
Yes. CMS data shows Dr. Parker billed Medicare for 779 services in 2024.
What is Dr. Nathan Henderson Parker's MIPS score?
Dr. Parker's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Nathan Henderson Parker see?
CMS counts 525 Medicare patients who saw Dr. Parker in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. Nathan Henderson Parker bill to Medicare?
In 2024, Dr. Parker's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and heart test or procedure (93010).
Where did Dr. Nathan Henderson Parker go to medical school?
Dr. Parker graduated from University of Southern California Keck School of Medicine in 2011.
What drugs does Dr. Nathan Henderson Parker prescribe most?
In 2024 Medicare Part D data, Dr. Parker's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Ondansetron ODT.
How long has Dr. Nathan Henderson Parker been practicing?
Dr. Parker graduated from medical school in 2011, 15 years ago.
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