Cassandra Ohlsen, MD
Internal Medicine Physician · Pacific Grove, CA
Cassandra Ohlsen, MD is an internal medicine physician with a practice address in Pacific Grove, California, and NPI 1356457170, issued on Aug 22, 2006. Check the license (California G56448, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Cassandra Ohlsen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G56448 CA
Self-reported in NPPES; status is on the state search - Practice location
- 154 14TH St, Pacific Grove, CA 93950
- Phone
- (831) 277-2220
- Enumerated
- Aug 22, 2006
- Record last updated
- Dec 12, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Cassandra Ohlsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G56448Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average internal medicine physician in 2024
3,907 Medicare Part D claims for 503 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium529 claims
- Losartan Potassium281 claims
- Atorvastatin Calcium277 claims
- Amlodipine Besylate231 claims
- Simvastatin130 claims
- Rosuvastatin Calcium129 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 89.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Cassandra Ohlsen among 17,696 internal medicine physician records in California
Cassandra Ohlsen, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 internal medicine physician records list a practice address in Pacific Grove
They are 4 of the 217 NPPES records with a practice address in Pacific Grove, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Pacific Grove → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gopika Dasari, M.DPacific Grove, CA 939501801393467
- James Grant, MDPacific Grove, CA 939501578665535
- David Wright, M.D.Pacific Grove, CA 939501821327248
- Eileen Murphy, M.D.Pebble Beach, CA 939531164775748
- David Terman, M.D.Pebble Beach, CA 939531598979577
- David Ang, M.D.Seaside, CA 939551699700344
- Frank Chiu, MDSeaside, CA 939551740202670
- Norman Gross, M.D.Seaside, CA 939551124065685
Common questions
What is Cassandra Ohlsen, MD's NPI number?
Cassandra Ohlsen, MD's National Provider Identifier (NPI) is 1356457170, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Ohlsen, MD located?
The NPPES record lists a practice address at 154 14TH St, Pacific Grove, CA, 93950. Phone: (831) 277-2220. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Ohlsen, MD's license?
NPPES lists California license number G56448, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassandra Ohlsen, MD prescribe under Medicare Part D?
In 2024, Cassandra Ohlsen, MD had 3,907 Medicare Part D claims for 503 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Cassandra Ohlsen, MD's MIPS final score?
The 2023 MIPS final score is 89.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.