Circ Arrhythm Electrophysiol
Dr. Shashima Nakahara, MD
- Medicare services, 2024
- 2,109
- Medicare patients, 2024
- 1,250
- Part D claims, 2024
- 3,748
- Publications
- 1
- Hospital affiliations
- 5
- Practice address
- 1615 Delaware Street, Longview, WA 98632
- Practice phone
- Call (360) 414-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nakahara'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. Shashima Nakahara is a cardiologist in Longview, Washington
Dr. Nakahara practices at PeaceHealth St. John Medical Center in Longview, Washington, part of PeaceHealth.
Dr. Nakahara's NPI, 1437474103, was assigned on April 6, 2010. Dr. Nakahara holds Washington license MD60650945.
- NPI
- 1437474103NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880830256
- NPI enumeration date
- April 6, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (360) 414-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Shashima Nakahara practices at PeaceHealth St. John Medical Center in Longview, Washington
Dr. Nakahara's primary practice is PeaceHealth St. John Medical Center, at 1615 Delaware Street, Longview, WA 98632 in Cowlitz County. The practice phone is (360) 414-2000.
- PeaceHealth St. John Medical Center1615 Delaware Street, Longview, WA 98632 · Cowlitz CountyPhone(360) 414-2000
Source: Dmand AI Affiliation Data
Dr. Shashima Nakahara is affiliated with 5 sites of care and 2 medical groups
Dr. Nakahara's primary practice is PeaceHealth St. John Medical Center in Longview, Washington, part of PeaceHealth. Dr. Nakahara is also affiliated with OHSU Hospital. The medical group on file is Oregon Health & Science University (OHSU). Dmand AI also links Dr. Nakahara to 3 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. Shashima Nakahara's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nakahara practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| PeaceHealth St. John Medical Center | Available with a free account |
| +4 more sites and 1 medical group | 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 PeaceHealth and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Shashima Nakahara is one of 416 cardiologists in Washington
Cardiovascular disease is Dr. Nakahara's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dmand AI has Dr. Nakahara's licenses on file in 2 states: Washington and Oregon.
Specialties and state licenses
- Cardiovascular disease, WashingtonPrimary
- Oregon license
Cardiologists near Dr. Nakahara
Counts of cardiologists 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. Shashima Nakahara billed Medicare for 2,109 services in 2024
CMS data shows 2,109 Medicare services from Dr. Nakahara across 16 procedure codes in 2024, for 1,250 Medicare patients. Medicare paid $52,243 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nakahara's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,2682024: 1,54722%
- Office and hospital visits
- 2023: 4122024: 3778%
- Other services
- 2023: 02024: 185
Dr. Nakahara compared with the Washington median for cardiologists, 2024
- Dr. Nakahara
- Washington median
- Medicare services
- 2,109vs 1,52039% above
- Medicare patients
- 1,250vs 84648% above
- Part D claims
- 3,587vs 1,7212.1 times
Medians across 425 cardiologists in Washington with Dmand AI profiles that report each measure.
Dr. Nakahara'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nakahara and other cardiologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Shashima Nakahara treated 1,250 Medicare patients in 2024, average age 75
CMS counts 1,250 Medicare patients who saw Dr. Nakahara in 2024. The largest group is 75 to 84, with 459 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.62, 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. Nakahara's median patient age at 74, with 51% women.
Dr. Nakahara's Medicare patients by age, 2024
Dr. Nakahara's Medicare patients by sex, 2024
- Women65052%
- Men60048%
Chronic conditions among Dr. Nakahara's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis43%
- Ischemic heart disease40%
- Heart failure38%
- Atrial fibrillation36%
- Chronic kidney disease34%
- Diabetes34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nakahara's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
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. Shashima Nakahara wrote 3,748 Medicare Part D claims in 2024
In 2024, Dr. Nakahara wrote 3,748 Medicare Part D claims for 660 patients. 79% of them were for generic drugs. CMS names the drug for 3,587 of them, across 34 drugs with 11 or more claims each, at $923,743 in total drug cost. In 2023, CMS named 3,246 claims across 32 drugs.
Dr. Nakahara's Part D claims by kind of drug, 2024
- Generic2,976 claims79%
- Brand-name772 claims21%
Dr. Nakahara'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,2462024: 3,58711%
Drugs named by CMS: 34 in 2024, 32 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
How Dr. Shashima Nakahara takes part in Medicare
Dr. Nakahara accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Pacemaker insertion or repair: 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. Shashima Nakahara has 1 publication on record
Dmand AI links 1 paper to Dr. Nakahara. Dr. Nakahara's most frequent co-authors are Christopher V. Chien, MD, Khidir Abdelmoneim Khidir Dalouk, MD and Jill M. Gelow, MD.
Dr. Nakahara's most frequent co-authors
- Christopher V. Chien, MD1 shared paper
- Khidir Abdelmoneim Khidir Dalouk, MD1 shared paper
- Jill M. Gelow, MD1 shared paper
Recent publications by Dr. Nakahara
See who Dr. Nakahara researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Nakahara works with, so you can find a warm path to the right cardiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Shashima Nakahara received $808 in industry payments from 2016 to 2025
CMS Open Payments shows 13 general payments to Dr. Nakahara from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $377.
General payments to Dr. Nakahara by program year, 2016 to 2025
Companies that paid Dr. Nakahara the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Shashima Nakahara'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) |
| 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) |
| 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. Shashima Nakahara
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. Shashima Nakahara's NPI number?
Dr. Shashima Nakahara's NPI number is 1437474103. It was assigned on April 6, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Shashima Nakahara?
Dr. Shashima Nakahara is a cardiologist in Longview, Washington. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Shashima Nakahara practice?
Dr. Nakahara practices at 1615 Delaware Street, Longview, WA 98632. Dr. Nakahara's primary practice is PeaceHealth St. John Medical Center in Longview, Washington, part of PeaceHealth. Dmand AI also links Dr. Nakahara to 3 hospitals and 1 medical group.
What is Dr. Shashima Nakahara's office phone number?
The practice phone on file for Dr. Nakahara is (360) 414-2000.
What is Dr. Shashima Nakahara's medical license number?
Dr. Nakahara holds Washington license MD60650945, one of the licenses on file in 2 states.
Which states has Dr. Shashima Nakahara been licensed in?
Dmand AI has state licenses on file for Dr. Nakahara in Washington and Oregon.
Which hospitals is Dr. Shashima Nakahara affiliated with?
Dr. Nakahara practices at PeaceHealth St. John Medical Center in Longview, Washington. Dr. Nakahara is also affiliated with OHSU Hospital. Dmand AI links Dr. Nakahara to 3 more hospitals.
What medical group is Dr. Shashima Nakahara part of?
Dr. Nakahara is linked to Oregon Health & Science University (OHSU). Dmand AI links Dr. Nakahara to 1 more medical group.
Does Dr. Shashima Nakahara accept Medicare?
Yes. CMS data shows Dr. Nakahara billed Medicare for 2,109 services in 2024, and Dr. Nakahara accepts Medicare assignment.
How many Medicare patients does Dr. Shashima Nakahara see?
CMS counts 1,250 Medicare patients who saw Dr. Nakahara in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Shashima Nakahara bill to Medicare?
In 2024, Dr. Nakahara's most billed Medicare services were heart test or procedure (93010), heart test or procedure (93306) and office visit, established patient (99214).
What drugs does Dr. Shashima Nakahara prescribe most?
In 2024 Medicare Part D data, Dr. Nakahara's most prescribed drugs by claims were Metoprolol Succinate, Atorvastatin Calcium and Furosemide.
Has Dr. Shashima Nakahara received payments from drug or device companies?
CMS Open Payments shows $808 in general payments to Dr. Nakahara from 8 companies from 2016 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Shashima Nakahara been practicing?
Dr. Nakahara graduated from medical school in 2010, 16 years ago.
Does Dr. Shashima Nakahara do research?
Dmand AI links 1 publication to Dr. Nakahara.
Who does Dr. Shashima Nakahara publish with?
Dr. Nakahara's most frequent co-authors are Christopher V. Chien, MD (1 shared paper), Khidir Abdelmoneim Khidir Dalouk, MD (1 shared paper) and Jill M. Gelow, MD (1 shared paper).
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