Dr. Nathan Claydon, MD
- Medicare services, 2024
- 1,251
- Medicare patients, 2024
- 402
- Part D claims, 2024
- 150
- Publications
- 2
- MIPS score, 2024
- 100
- Practice address
- 155 Glasson Way, Grass Valley, CA 95945
- Practice phone
- Call (530) 274-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Claydon'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. Nathan Claydon is an internist in Grass Valley, California
Dr. Claydon practices at Dignity Health - Sierra Nevada Memorial Hospital in Grass Valley, California, part of CommonSpirit Health.
Dr. Claydon's NPI, 1023453271, was assigned on May 1, 2013. Dr. Claydon graduated from Ross University School of Medicine in 2013. Dr. Claydon's California license number on file is 142159.
- NPI
- 1023453271NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355584467
- NPI enumeration date
- May 1, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 274-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan Claydon practices at Dignity Health - Sierra Nevada Memorial Hospital in Grass Valley, California
Dr. Claydon's primary practice is Dignity Health - Sierra Nevada Memorial Hospital, at 155 Glasson Way, Grass Valley, CA 95945 in Nevada County. The practice phone is (530) 274-6000.
- Dignity Health - Sierra Nevada Memorial Hospital155 Glasson Way, Grass Valley, CA 95945 · Nevada CountyPhone(530) 274-6000
Source: Dmand AI Affiliation Data
Dr. Nathan Claydon is affiliated with 4 sites of care and 1 medical group
Dr. Claydon's primary practice is Dignity Health - Sierra Nevada Memorial Hospital in Grass Valley, California, part of CommonSpirit Health. Dr. Claydon is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. The medical group on file is Mercy Medical Group. Dmand AI also links Dr. Claydon to 2 more hospitals, 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 Claydon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Claydon practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Sierra Nevada Memorial Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathan Claydon is one of 16,751 internists in California
Internal medicine is Dr. Claydon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Claydon is board certified in internal medicine by the American Board of Internal Medicine. Dr. Claydon has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, acute stomach ulcer, bile duct problems, cardiac arrhythmia, chest pain, cirrhosis and collapsed lung among the conditions Dr. Claydon treats.
Internists near Dr. Claydon
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. Nathan Claydon billed Medicare for 1,251 services in 2024
CMS data shows 1,251 Medicare services from Dr. Claydon across 10 procedure codes in 2024, for 402 Medicare patients. Medicare paid $122,371 for them.
Dr. Claydon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3462024: 1,16913%
- Tests and treatments
- 2023: 242024: 82242%
Where Dr. Claydon's Medicare services took place, 2024
- In an office423%
- In a facility1,20997%
Dr. Claydon compared with the California median for internists, 2024
- Dr. Claydon
- California median
- Medicare services
- 1,251vs 3613.5 times
- Medicare patients
- 402vs 1512.7 times
- Part D claims
- 68vs 42184% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Claydon'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 Claydon treated 402 Medicare patients in 2024, average age 76
CMS counts 402 Medicare patients who saw Dr. Claydon in 2024. The largest group is 75 to 84, with 143 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 35% are also on Medicaid. Their average risk score is 2.02, 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. Claydon's median patient age at 76, with 51% women.
Dr. Claydon's Medicare patients by age, 2024
Dr. Claydon's Medicare patients by sex, 2024
- Women20551%
- Men19749%
Chronic conditions among Dr. Claydon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Heart failure47%
- Ischemic heart disease43%
- Mood disorders40%
- Atrial fibrillation38%
- COPD37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Claydon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan Claydon wrote 150 Medicare Part D claims in 2024
In 2024, Dr. Claydon wrote 150 Medicare Part D claims for 71 patients. 90% of them were for generic drugs. CMS names the drug for 68 of them, across 5 drugs with 11 or more claims each, at $7,634 in total drug cost. In 2022, CMS named 84 claims across 5 drugs.
Dr. Claydon's Part D claims by kind of drug, 2024
- Generic135 claims90%
- Brand-name15 claims10%
Dr. Claydon'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.
Drug classes CMS tracks in Dr. Claydon's Part D claims, 2024
- Antibiotics18%27 of 150 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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 842023: 6819%
Drugs named by CMS: 5 in 2023, 5 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
Dr. Nathan Claydon scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Claydon for performance year 2024, reported through an alternative payment model (APM). Dr. Claydon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Claydon's MIPS scores, performance year 2024
- 100of 100Final score
- 86.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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 Claydon has 2 publications on record
Dmand AI links 2 papers to Dr. Claydon.
Recent publications by Dr. Claydon
See who Dr. Claydon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Claydon works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nathan Claydon received $863 in industry payments from 2022 to 2025
CMS Open Payments shows 23 general payments to Dr. Claydon from 4 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $653.
General payments to Dr. Claydon by program year, 2022 to 2025
Companies that paid Dr. Claydon the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathan Claydon's committees and leadership roles
Dr. Claydon's committees and leadership roles
- Surgical Services Executive CommitteeMember
- 2018 to 2020
- Utilization Reviewmember
- 2017 to 2020
- BioethicsChairman
- 2016 to 2020
- CredentialsMember
- 2016 to 2020
Source: Dmand AI Professional Profile Data
Dr. Nathan Claydon graduated from Ross University School of Medicine
Dr. Claydon graduated from Ross University School of Medicine in 2013. Dr. Claydon is a member of ACP.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Nathan Claydon accepts plans from 14 insurance carriers
Dr. Claydon is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +6 more carriersWith a free account
Plan types Dr. Claydon accepts, by number of carriers
- PPO9
- HMO6
- Medicare6
- EPO3
- POS2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Nathan Claydon'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 | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Nathan Claydon
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 Claydon's NPI number?
Dr. Nathan Claydon's NPI number is 1023453271. It was assigned on May 1, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan Claydon?
Dr. Nathan Claydon is an internist in Grass Valley, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Nathan Claydon practice?
Dr. Claydon practices at 155 Glasson Way, Grass Valley, CA 95945. Dr. Claydon's primary practice is Dignity Health - Sierra Nevada Memorial Hospital in Grass Valley, California, part of CommonSpirit Health. Dmand AI also links Dr. Claydon to 2 hospitals.
What is Dr. Nathan Claydon's office phone number?
The practice phone on file for Dr. Claydon is (530) 274-6000.
What is Dr. Nathan Claydon's medical license number?
Dr. Claydon's California license number on file is 142159.
Which hospitals is Dr. Nathan Claydon affiliated with?
Dr. Claydon practices at Dignity Health - Sierra Nevada Memorial Hospital in Grass Valley, California. Dr. Claydon is also affiliated with UCSF Helen Diller Medical Center at Parnassus Heights. Dmand AI links Dr. Claydon to 2 more hospitals.
What medical group is Dr. Nathan Claydon part of?
Dr. Claydon is linked to Mercy Medical Group.
Does Dr. Nathan Claydon accept Medicare?
Yes. CMS data shows Dr. Claydon billed Medicare for 1,251 services in 2024, and Dr. Claydon accepts Medicare assignment.
What is Dr. Nathan Claydon's MIPS score?
Dr. Claydon's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Nathan Claydon see?
CMS counts 402 Medicare patients who saw Dr. Claydon in 2024, with an average age of 76.
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Is Dr. Nathan Claydon board certified?
Yes. Dr. Claydon is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Nathan Claydon bill to Medicare?
In 2024, Dr. Claydon's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and critical care (99291).
Where did Dr. Nathan Claydon go to medical school?
Dr. Claydon graduated from Ross University School of Medicine in 2013.
What drugs does Dr. Nathan Claydon prescribe most?
In 2023 Medicare Part D data, Dr. Claydon's most prescribed drugs by claims were Eliquis, Furosemide and Amiodarone HCl.
Has Dr. Nathan Claydon received payments from drug or device companies?
CMS Open Payments shows $863 in general payments to Dr. Claydon from 4 companies from 2022 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Nathan Claydon been practicing?
Dr. Claydon graduated from medical school in 2013, 13 years ago.
Does Dr. Nathan Claydon do research?
Dmand AI links 2 publications to Dr. Claydon.
What insurance does Dr. Nathan Claydon accept?
Dr. Claydon is in network with 14 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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