NPPES file of Aug 9, 2026

Josephine Widjaja Kozloff, PA-C

Physician Assistant · Christiansted, VI

Josephine Widjaja Kozloff, PA-C is a physician assistant with a practice address in Christiansted, Virgin Islands, and NPI 1225312382, issued on Oct 6, 2011. Check the license (Virgin Islands 048, as entered in NPPES) with the Virgin Islands board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225312382
Name
Josephine Widjaja Kozloff
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
048 VI
PA21803 CA
Self-reported in NPPES; status is on the state search
Practice location
6040 Castle Coakley, Christiansted, VI 00820
Phone
(340) 998-2404
Enumerated
Oct 6, 2011
Record last updated
Mar 15, 2023
Fax
(340) 713-7272
Medicare enrollment
Enrolled (PECOS I20140508001558); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6040 Castle Coakley

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Robert Martin, MDFamily Medicine Physician1316954860
  2. Lindsay Ray, NPFamily Nurse Practitioner1437510617

Verify Josephine Widjaja Kozloff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Virgin Islands board licenses this profession
    Search for license 048
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Virgin Islands license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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9% more Medicare Part D claims than the average physician assistant in 2024

906 Medicare Part D claims for 447 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Josephine Kozloff906
  2. Specialty average830

Most prescribed

  1. Amoxicillin-Clavulanate Potass70 claims
  2. Prednisone57 claims
  3. Nitrofurantoin Mono-Macro43 claims
  4. Naproxen40 claims
  5. Cephalexin37 claims
  6. Azithromycin34 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 practice group's MIPS final score for 2023 (Medicare payment program): 70.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score47.8
  2. Costout of 100 · 30%71.1
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Prohealth Urgent Care LLCChristiansted, VI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Josephine Widjaja Kozloff among 22 physician assistant records in Virgin Islands

Josephine Widjaja Kozloff, PA-C is one of 22 physician assistant records with a practice address in Virgin Islands. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 45% of them.

  • NPI issued2011 · 45% of these records are older, 41% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2011 · median 2013 among the 10 with a school on file
  • Record last updated2023 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Virgin Islands practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 physician assistant records list a practice address in Christiansted

They are 12 of the 279 NPPES records with a practice address in Christiansted, and 22 physician assistant records in Virgin Islands.

The 8 physician assistant records with the nearest ZIP codes

  1. Roy Arcamo, PAChristiansted, VI 008201962458547
  2. Jennifer Arizu, PA-CChristiansted, VI 008201689085417
  3. Jessica CarterChristiansted, VI 008201154882371
  4. Sarah Cooper, PA-CChristiansted, VI 008201659868123
  5. Lindsey Kranson, PAChristiansted, VI 008201093170037
  6. Keith Moore, PA-CChristiansted, VI 008201902190572
  7. Scott Morris, PA-CChristiansted, VI 008201740243385
  8. Camille Paul, PA-CChristiansted, VI 008201023596418

Common questions

What is Josephine Widjaja Kozloff, PA-C's NPI number?

Josephine Widjaja Kozloff, PA-C's National Provider Identifier (NPI) is 1225312382, issued on Oct 6, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Josephine Widjaja Kozloff, PA-C located?

The NPPES record lists a practice address at 6040 Castle Coakley, Christiansted, VI, 00820. Phone: (340) 998-2404. Providers update this record themselves, so call before visiting.

How can I verify Josephine Widjaja Kozloff, PA-C's license?

NPPES lists Virgin Islands license number 048, as entered by the provider. Search the Virgin Islands board that licenses this profession; the NPPES record confirms identity only.

How much does Josephine Widjaja Kozloff, PA-C prescribe under Medicare Part D?

In 2024, Josephine Widjaja Kozloff, PA-C had 906 Medicare Part D claims for 447 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Josephine Widjaja Kozloff, PA-C's MIPS final score?

The 2023 MIPS final score is 70.4 of 100, reported for the practice group. 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.