Dr. Sean S. Park, MD
- Medicare services, 2024
- 51
- Medicare patients, 2024
- 25
- Part D claims, 2024
- 28
- Hospital affiliations
- 1
- Industry payments
- $139
- Practice address
- 85 Sierra Park Road, Mammoth Lakes, CA 93546
- Practice phone
- Call (760) 934-3311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mammoth Hospital - Clinic
Rural Health Clinic - Hospital-Owned · Mammoth Lakes, California
Find Dr. Park's professional email, personal email and mobile number
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Dr. Sean S. Park is an internist in Mammoth Lakes, California
Dr. Park practices at Mammoth Hospital - Clinic in Mammoth Lakes, California.
Dr. Park's NPI, 1316031883, was assigned on October 2, 2006. Dr. Park graduated from University of Vermont College of Medicine in 1998. Dr. Park holds California license A70333.
- NPI
- 1316031883NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224065560
- NPI enumeration date
- October 2, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 934-3311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sean S. Park practices at Mammoth Hospital - Clinic in Mammoth Lakes, California
Dr. Park's primary practice is Mammoth Hospital - Clinic, at 85 Sierra Park Road, Mammoth Lakes, CA 93546. The practice phone is (760) 934-3311.
- Mammoth Hospital - Clinic85 Sierra Park Road, Mammoth Lakes, CA 93546Phone(760) 934-3311
Source: Dmand AI Affiliation Data
Dr. Sean S. Park is affiliated with 2 sites of care and 1 medical group
Dr. Park's primary practice is Mammoth Hospital - Clinic in Mammoth Lakes, California. Dr. Park is also affiliated with Mammoth Hospital. The medical group on file is Mammoth Hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sean S. Park's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Park practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mammoth Hospital - Clinic | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sean S. Park is one of 16,751 internists in California
Internal medicine is Dr. Park's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Park is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Park
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. Sean S. Park billed Medicare for 51 services in 2024
CMS data shows 51 Medicare services from Dr. Park across 3 procedure codes in 2024, for 25 Medicare patients. Medicare paid $5,305 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Park's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 612024: 5116%
Dr. Park compared with the California median for internists, 2024
- Dr. Park
- California median
- Medicare services
- 51vs 36186% below
- Medicare patients
- 25vs 15183% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Park'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. Park?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Park and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sean S. Park treated 25 Medicare patients in 2024, average age 76
CMS counts 25 Medicare patients who saw Dr. Park in 2024. The largest group is 75 to 84, with 13 patients. 64% of them have high blood pressure, and 56% have high cholesterol. Their average risk score is 1.29, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Park's median patient age at 63, with 48% women.
Dr. Park's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Park's Medicare patients by sex, 2024
- Women1352%
- Men1248%
Chronic conditions among Dr. Park's Medicare patients, 2024
- High blood pressure64%
- High cholesterol56%
Share of Medicare patients with each condition. A patient can have several.
Dr. Park's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sean S. Park wrote 28 Medicare Part D claims in 2024
In 2024, Dr. Park wrote 28 Medicare Part D claims for 20 patients. 86% of them were for generic drugs.
Dr. Park's Part D claims by kind of drug, 2024
- Generic24 claims86%
- Brand-name and other4 claims14%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Sean S. Park takes part in Medicare
Dr. Park accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sean S. Park received $139 in industry payments from 2022 to 2024
CMS Open Payments shows 2 general payments to Dr. Park from 2 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $119.
General payments to Dr. Park by program year, 2022 to 2024
Companies that paid Dr. Park the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sean S. Park graduated from University of Vermont College of Medicine
Dr. Park graduated from University of Vermont College of Medicine in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sean S. Park'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 (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) |
| Industry payments | Open Payments (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. Sean S. Park
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. Sean S. Park's NPI number?
Dr. Sean S. Park's NPI number is 1316031883. It was assigned on October 2, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Sean S. Park?
Dr. Sean S. Park is an internist in Mammoth Lakes, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Sean S. Park practice?
Dr. Park practices at 85 Sierra Park Road, Mammoth Lakes, CA 93546. Dr. Park's primary practice is Mammoth Hospital - Clinic in Mammoth Lakes, California.
What is Dr. Sean S. Park's office phone number?
The practice phone on file for Dr. Park is (760) 934-3311.
What is Dr. Sean S. Park's medical license number?
Dr. Park holds California license A70333.
Which hospitals is Dr. Sean S. Park affiliated with?
Dr. Park is affiliated with Mammoth Hospital.
What medical group is Dr. Sean S. Park part of?
Dr. Park is linked to Mammoth Hospital.
Does Dr. Sean S. Park accept Medicare?
Yes. CMS data shows Dr. Park billed Medicare for 51 services in 2024, and Dr. Park accepts Medicare assignment.
How many Medicare patients does Dr. Sean S. Park see?
CMS counts 25 Medicare patients who saw Dr. Park in 2024, with an average age of 76.
What services does Dr. Sean S. Park bill to Medicare?
In 2024, Dr. Park's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99239).
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Where did Dr. Sean S. Park go to medical school?
Dr. Park graduated from University of Vermont College of Medicine in 1998.
Has Dr. Sean S. Park received payments from drug or device companies?
CMS Open Payments shows $139 in general payments to Dr. Park from 2 companies from 2022 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Sean S. Park been practicing?
Dr. Park graduated from medical school in 1998, 28 years ago.
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