Cassandra Juanita Kaiser, D.O.
Physical Medicine & Rehabilitation Physician · Boston, MA
Cassandra Juanita Kaiser, D.O. is a physical medicine & rehabilitation physician with a practice address in Boston, Massachusetts, and NPI 1255719324, issued on May 11, 2015. Check the license (Massachusetts 1021270, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Cassandra Juanita Kaiser
- Credential
- D.O.
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License numbers
- 1021270 MA
325621-01 NY
83833 GA
OP61672550 WA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (940) 765-9499
- Enumerated
- May 11, 2015
- Record last updated
- Mar 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20231213003216); accepts Medicare assignment
- Medical or professional school
- At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa, 2015
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 353 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Affan Aamir, MD, PHARMD, RPHStudent in an Organized Health Care Education/Training Program1821890377
- Matthew AbadirAnesthesiology Physician1699120550
- Taimur AbbasiInternal Medicine Physician1841673522
- Megan Abbott, MDAnesthesiology Physician1730839333
- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Cassandra Juanita Kaiser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1021270Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
179 Medicare Part D claims for 69 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 24 claims were for opioids.
Most prescribed
- Oxycodone Hcl17 claims
- Gabapentin15 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): 92.3 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).
2 hospitals and group practices
- Samaritan Medical CenterAdams, NY · Acute Care Hospitals2 of 5 stars
- Rchp Billings - Missoula LLCMissoula, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Cassandra Juanita Kaiser among 353 physical medicine & rehabilitation physician records in Massachusetts
Cassandra Juanita Kaiser, D.O. is one of 353 physical medicine & rehabilitation physician records with a practice address in Massachusetts. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 67% of them.
- NPI issued2015 · 67% of these records are older, 31% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2015 · median 2006 among the 209 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Massachusetts
There are 353 physical medicine & rehabilitation physician records in Massachusetts.
All 353 in Massachusetts → Every provider in Boston → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Randie Black-Schaffer, MDBoston, MA 021141225010515
- Heechin Chae, MDBoston, MA 021141861483067
- David Crandell, MDBoston, MA 021141215993910
- Mel Glenn, MDBoston, MA 021141821089582
- Wei-Lee Liao, MDBoston, MA 021141780674853
- Alec Meleger, MDBoston, MA 021141477536878
- Shanker Nesathurai, MDBoston, MA 021141477530418
- Nimet Oruc, MDBoston, MA 021141427048735
Common questions
What is Cassandra Juanita Kaiser, D.O.'s NPI number?
Cassandra Juanita Kaiser, D.O.'s National Provider Identifier (NPI) is 1255719324, issued on May 11, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Cassandra Juanita Kaiser, D.O. located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (940) 765-9499. Providers update this record themselves, so call before visiting.
How can I verify Cassandra Juanita Kaiser, D.O.'s license?
NPPES lists Massachusetts license number 1021270, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Cassandra Juanita Kaiser, D.O. prescribe under Medicare Part D?
In 2024, Cassandra Juanita Kaiser, D.O. had 179 Medicare Part D claims for 69 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is Cassandra Juanita Kaiser, D.O.'s MIPS final score?
The 2023 MIPS final score is 92.3 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.