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KAREN IVETTE OSSA M.D.
NPI 1801005418
Internal Medicine in San Juan, PR

Active since May 21, 2007PECOS EnrolledAccepts Medicare Assignment
1357 AVE ASHFORD, PRESBYTERIAN HOSPITAL PMB 423, SUITE 2, SAN JUAN, PR 00907(787) 999-0204 Get Directions Write a Review

NPPES record last updated: January 4, 2017. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jan 4, 2017, Dec 29, 2016 (2 updates tracked since 2016).

About Karen Ivette Ossa M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KAREN IVETTE OSSA M.D. (NPI 1801005418) is an individual internal medicine provider in San Juan, Puerto Rico, licensed in Florida (ME-117566) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Holy Cross Hospital, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1801005418
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN IVETTE OSSACredential: M.D.
Location Address1357 AVE ASHFORD, PRESBYTERIAN HOSPITAL PMB 423, SUITE 2San Juan, PR 00907-1400
Mailing Address10710 Nw 66th St, Apt. 201Doral, FL 33178-4555 · (787) 240-1564
Phone(787) 999-0204
Sole ProprietorYes
Medical School CMSOtherGraduated 2003
Enumeration DateMay 21, 2007
Last NPPES UpdateJanuary 4, 20172 updates tracked since enumeration
✔ NPI 1801005418 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in FL · ME-117566✔ Licensed in PR · 16274
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1357 AVE ASHFORD, San Juan, PR 00907
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Maintenance Organization of Florida, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Karen Ivette Ossa M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315199569
PECOS Enrollment IDI20160412001574, I20200408002960
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

9

Medicare enrollment records show Karen Ossa reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hospital Medicine Services Of Fl, LLC
1,038 mi
Hospitalist
20900 BISCAYNE BLVD
Aventura, FL 33180
  • Reassigned Medicare billing, Florida enrollment
  • 861 clinicians in this Medicare group
NPI 1710684857 (305) 682-7000
Sound Physicians Of Florida Vi LLC
1,044 mi
Internal Medicine
4725 N FEDERAL HWY
Fort Lauderdale, FL 33308
  • Reassigned Medicare billing, Florida enrollment
  • 197 clinicians in this Medicare group
NPI 1417761073 (954) 771-8000
Cogent Healthcare Of Jacksonville, LLC
1,197 mi
Internal Medicine
1515 HERBERT ST STE 210
Port Orange, FL 32129
  • Reassigned Medicare billing, Florida enrollment
  • 440 clinicians in this Medicare group
NPI 1861150625 (386) 788-8313
Sound Physicians Of Florida IV, LLC
1,218 mi
Internal Medicine
60 MEMORIAL MEDICAL PKWY
Palm Coast, FL 32164
  • Reassigned Medicare billing, Florida enrollment
  • 300 clinicians in this Medicare group
NPI 1740633635 (615) 377-5658
Galen Inpatient Physicians PC
1,471 mi
Hospitalist
615 N BONITA AVE
Panama City, FL 32401
  • Reassigned Medicare billing, Florida enrollment
  • 199 clinicians in this Medicare group
NPI 1336946904 (850) 769-1511
Hospital Physician Services Of Florida PA
1,565 mi
Hospitalist
8383 N DAVIS HWY
Pensacola, FL 32514
  • Reassigned Medicare billing, Florida enrollment
  • 601 clinicians in this Medicare group
NPI 1558718635 (850) 494-4000
Memorial Health Partners Foundation, Inc
1,637 mi
Internal Medicine
5600 BRAINERD RD, SUITE 500
Chattanooga, TN 37411
  • Reassigned Medicare billing, Tennessee enrollment
  • 570 clinicians in this Medicare group
NPI 1922053545 (423) 495-6870
Saint Thomas Medical Partners
1,747 mi
Gynecology
4601 CAROTHERS PARKWAY, STE. 350
Franklin, TN 37067
  • Reassigned Medicare billing, Tennessee enrollment
  • 1,304 clinicians in this Medicare group
NPI 1164679411 (615) 284-4664
Hospital Medicine Services Of Tn, LLC
1,757 mi
Hospitalist
2300 PATTERSON ST
Nashville, TN 37203
  • Reassigned Medicare billing, Tennessee enrollment
  • 420 clinicians in this Medicare group
NPI 1982301065 (615) 342-1001

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
358 services166 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
106 services102 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
94 services61 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
31 services31 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
15 services14 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Holy Cross Hospital

Acute Care Hospitals · Fort Lauderdale, FL
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number100073
Location4725 N Federal HwyFort Lauderdale, FL 33308 · Broward County
Emergency services

Memorial Healthcare System, Inc

Acute Care Hospitals · Chattanooga, TN
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number440091
Location2525 Desales AveChattanooga, TN 37404 · Hamilton County

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 00907 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.65 typical visit price
range $56.86 – $172.44
Typical copayment $32.66 (range $14.21 – $43.11)
Most-billed visit code 99204
Established Patient
$100.24 typical visit price
range $18.24 – $140.44
Typical copayment $25.06 (range $4.56 – $35.11)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%163 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers14 claims14 services$15.28 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers18 claims18 services$66.65 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LGF LLC
Clinic/Center (Adolescent and Children Mental Health)
1357 AVE ASHFORD, PMB 282
SAN JUAN, PR 00907
San Juan Municipio (787) 641-0773
DR. LORENZO GONZALEZ M.D.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1357 AVE ASHFORD, PMB #282
SAN JUAN, PR 00907
San Juan Municipio (570) 854-9925
KIMBERLY M GUADALUPE-ANDERSEN CRNA
Nurse Anesthetist, Certified Registered
1357 AVE ASHFORD, SUITE 2
SAN JUAN, PR 00907
San Juan Municipio (787) 721-2160
TOTAL IMAGING, PSC
Clinic/Center (Radiology, Mammography)
1357 AVE ASHFORD, PMB 409
SAN JUAN, PR 00907
San Juan Municipio (787) 787-5151

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Karen Ossa's NPI number?

The NPI number for Karen Ossa is 1801005418. It was assigned to this individual provider in the NPPES registry on May 21, 2007.

Where is Karen Ossa located?

Karen Ossa practices at 1357 Ave Ashford Presbyterian Hospital Pmb 423, Suite 2, San Juan, PR 00907. The listed phone number is (787) 999-0204.

What is Karen Ossa's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karen Ossa enrolled in Medicare?

Yes. Karen Ossa is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Karen Ossa's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Ossa reassigns Medicare benefits to 9 organizations: Hospital Medicine Services Of Fl, LLC (Aventura, FL), Sound Physicians Of Florida Vi LLC (Fort Lauderdale, FL), Cogent Healthcare Of Jacksonville, LLC (Port Orange, FL), Sound Physicians Of Florida IV, LLC (Palm Coast, FL), Galen Inpatient Physicians PC (Panama City, FL) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Karen Ossa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Karen Ossa accept?

Health plans from Oscar Health Maintenance Organization of Florida and Oscar Insurance Company list Karen Ossa as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Karen Ossa affiliated with any hospitals?

According to CMS data, Karen Ossa is affiliated with Holy Cross Hospital and Memorial Healthcare System, Inc.

When was this NPI record last updated?

The NPPES record for Karen Ossa was last updated on January 4, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.