Dr. Nathan Wayne Woolsey, MD
- Medicare services, 2024
- 230
- Medicare patients, 2024
- 166
- Part D claims, 2024
- 23
- Hospital affiliations
- 1
- Industry payments
- $5,651
- Practice address
- 1100 Marshall Way, Placerville, CA 95667
- Practice phone
- Call (530) 622-1441
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Woolsey's professional email, personal email and mobile number
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Dr. Nathan Wayne Woolsey is a general surgeon in Placerville, California
Dr. Woolsey practices at Marshall Medical in Placerville, California, part of Marshall Medical Center.
Dr. Woolsey's NPI, 1427359488, was assigned on November 8, 2010. Dr. Woolsey graduated from College of Human Medicine - Grand Rapids in 2009. Dr. Woolsey holds California license A116222.
- NPI
- 1427359488NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173742954
- NPI enumeration date
- November 8, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (530) 622-1441
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathan Wayne Woolsey practices at Marshall Medical in Placerville, California
Dr. Woolsey's primary practice is Marshall Medical, at 1100 Marshall Way, Placerville, CA 95667 in El Dorado County. The practice phone is (530) 622-1441.
- Marshall Medical1100 Marshall Way, Placerville, CA 95667 · El Dorado CountyPhone(530) 622-1441
Source: Dmand AI Affiliation Data
Dr. Nathan Wayne Woolsey is affiliated with 4 sites of care and 5 medical groups
Dr. Woolsey's primary practice is Marshall Medical in Placerville, California, part of Marshall Medical Center. The medical group on file is Marshall Medical Center. Dmand AI also links Dr. Woolsey to 4 more medical groups and 3 group practices and clinics, 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 Wayne Woolsey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Woolsey practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshall Medical | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Marshall Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Nathan Wayne Woolsey is one of 2,926 general surgeons in California
Surgery is Dr. Woolsey's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Woolsey is board certified in surgery by the American Board of Surgery. Dr. Woolsey is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists abdominal adhesion surgery, appendectomy, cancerous skin growth removal, colon removal, gallbladder removal, groin hernia surgery, hemorrhoids and mastectomy among the conditions Dr. Woolsey treats.
General surgeons near Dr. Woolsey
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
Dr. Nathan Wayne Woolsey billed Medicare for 230 services in 2024
CMS data shows 230 Medicare services from Dr. Woolsey across 7 procedure codes in 2024, for 166 Medicare patients. Medicare paid $15,732 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Woolsey's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3442024: 23033%
Dr. Woolsey compared with the California median for general surgeons, 2024
- Dr. Woolsey
- California median
- Medicare services
- 230vs 16639% above
- Medicare patients
- 166vs 12137% above
- Part D claims
- 25vs 3426% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Woolsey'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.
Need commercial claims for Dr. Woolsey?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Woolsey and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nathan Wayne Woolsey treated 166 Medicare patients in 2024, average age 73
CMS counts 166 Medicare patients who saw Dr. Woolsey in 2024. The largest group is 65 to 74, with 70 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 30% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Woolsey's median patient age at 69, with 47% women.
Dr. Woolsey's Medicare patients by age, 2024
Dr. Woolsey's Medicare patients by sex, 2024
- Women9859%
- Men6841%
Chronic conditions among Dr. Woolsey's Medicare patients, 2024
- High cholesterol75%
- High blood pressure69%
- Arthritis50%
- Mood disorders32%
- Anxiety31%
- Depression30%
- Alcohol and drug use disorders25%
- Diabetes25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Woolsey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nathan Wayne Woolsey wrote 23 Medicare Part D claims in 2024
In 2024, Dr. Woolsey wrote 23 Medicare Part D claims for 15 patients. 100% of them were for generic drugs. They cover 1 drug, with $338 in total drug cost.
Dr. Woolsey's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
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 Wayne Woolsey ranks in the 74th percentile for removal of tissue in Medicare
Dr. Woolsey accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 31 procedures of removal of tissue by Dr. Woolsey, more than 74% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Woolsey ranks in Medicare procedure volume
- Removal of tissue
- 74th percentile31 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 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. Nathan Wayne Woolsey received $5,651 in industry payments from 2017 to 2025
CMS Open Payments shows 31 general payments to Dr. Woolsey from 8 drug and device companies from 2017 to 2025. Education make up the largest share, 71% of the total. Intuitive Surgical, Inc. paid the most, $5,172.
General payments to Dr. Woolsey by program year, 2017 to 2025
General payments to Dr. Woolsey by kind, 2017 to 2025
- Education$4,00071%
- Travel and lodging$85715%
- Food and beverage$79414%
Companies that paid Dr. Woolsey the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathan Wayne Woolsey graduated from College of Human Medicine - Grand Rapids
Dr. Woolsey graduated from College of Human Medicine - Grand Rapids in 2009.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Nathan Wayne Woolsey accepts plans from 13 insurance carriers
Dr. Woolsey is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Woolsey accepts, by number of carriers
- PPO9
- Medicare8
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Nathan Wayne Woolsey'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)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. Nathan Wayne Woolsey
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 Wayne Woolsey's NPI number?
Dr. Nathan Wayne Woolsey's NPI number is 1427359488. It was assigned on November 8, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathan Wayne Woolsey?
Dr. Nathan Wayne Woolsey is a general surgeon in Placerville, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Nathan Wayne Woolsey practice?
Dr. Woolsey practices at 1100 Marshall Way, Placerville, CA 95667. Dr. Woolsey's primary practice is Marshall Medical in Placerville, California, part of Marshall Medical Center. Dmand AI also links Dr. Woolsey to 4 medical groups and 3 group practices and clinics.
What is Dr. Nathan Wayne Woolsey's office phone number?
The practice phone on file for Dr. Woolsey is (530) 622-1441.
What is Dr. Nathan Wayne Woolsey's medical license number?
Dr. Woolsey holds California license A116222.
Which hospitals is Dr. Nathan Wayne Woolsey affiliated with?
Dr. Woolsey practices at Marshall Medical in Placerville, California.
What medical group is Dr. Nathan Wayne Woolsey part of?
Dr. Woolsey is linked to Marshall Medical Center. Dmand AI links Dr. Woolsey to 4 more medical groups.
Does Dr. Nathan Wayne Woolsey accept Medicare?
Yes. CMS data shows Dr. Woolsey billed Medicare for 230 services in 2024, and Dr. Woolsey accepts Medicare assignment.
How many Medicare patients does Dr. Nathan Wayne Woolsey see?
CMS counts 166 Medicare patients who saw Dr. Woolsey in 2024, with an average age of 73.
Is Dr. Nathan Wayne Woolsey board certified?
Yes. Dr. Woolsey is board certified in surgery by the American Board of Surgery.
Show 6 more questionsShow fewer questions
What services does Dr. Nathan Wayne Woolsey bill to Medicare?
In 2024, Dr. Woolsey's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and office visit, new patient (99204).
Where did Dr. Nathan Wayne Woolsey go to medical school?
Dr. Woolsey graduated from College of Human Medicine - Grand Rapids in 2009.
What drugs does Dr. Nathan Wayne Woolsey prescribe most?
In 2016 Medicare Part D data, Dr. Woolsey's most prescribed drugs by claims were Gavilyte-G.
Has Dr. Nathan Wayne Woolsey received payments from drug or device companies?
CMS Open Payments shows $5,651 in general payments to Dr. Woolsey from 8 companies from 2017 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Nathan Wayne Woolsey been practicing?
Dr. Woolsey graduated from medical school in 2009, 17 years ago.
What insurance does Dr. Nathan Wayne Woolsey accept?
Dr. Woolsey is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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