DR. DAGMARA OSMANSKA-JAC M.D
NPI 1053413138
Internal Medicine in Chelmsford, MA

Active since September 01, 2006PECOS EnrolledAccepts Medicare Assignment
290 LITTLETON RD UNIT 3, CHELMSFORD, MA 01824(978) 685-2460 Get Directions Write a Review

NPPES record last updated: May 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 28, 2025, Jan 11, 2023 (2 updates tracked since 2023).

About Dr. Dagmara Osmanska-jac M.d NPPES

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

DR. DAGMARA OSMANSKA-JAC M.D (NPI 1053413138) is an individual internal medicine provider in Chelmsford, Massachusetts, licensed in Massachusetts (238055) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1053413138
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAGMARA OSMANSKA-JACCredential: M.D
Location Address290 LITTLETON RD UNIT 3Chelmsford, MA 01824-3429
Mailing Address290 Littleton Rd Unit 3Chelmsford, MA 01824-3429 · (978) 685-2460
Sole ProprietorNo
Medical School CMSOtherGraduated 1990
Enumeration DateSeptember 1, 2006
Last NPPES UpdateMay 28, 20252 updates tracked since enumeration
NPPES CertifiedMay 28, 2025
NPI 1053413138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in MA · 238055 Licensed in TX · K1892
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.
290 LITTLETON RD UNIT 3, Chelmsford, MA 01824

Other Identifiers 1

Medicaid110081539AMA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Dagmara Osmanska-jac 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 ID7113088824
PECOS Enrollment IDI20081212000213, I20231222001692
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.

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 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.
2,993 services474 patients
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.
1,284 services458 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.
464 services438 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.
455 services385 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
63 services63 patients

Hospital Affiliations CMS Care Compare 5

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

Lowell General Hospital

Acute Care Hospitals · Lowell, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220063
Location295 Varnum AvenueLowell, MA 01854 · Middlesex County
Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220071
Location55 Fruit StreetBoston, MA 02114 · Suffolk County
Emergency services Birthing friendly

Tufts Medical Center

Acute Care Hospitals · Boston, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220116
Location800 Washington StreetBoston, MA 02111 · Suffolk County
Emergency services Birthing friendly

Lahey Hospital & Medical Center, Burlington

Acute Care Hospitals · Burlington, MA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220171
Location41 & 45 Mall RoadBurlington, MA 01803 · Middlesex County
Emergency services

Metrowest Medical Center

Acute Care Hospitals · Framingham, MA
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220175
Location115 Lincoln StreetFramingham, MA 01701 · Middlesex County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01824 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
$144.11 typical visit price
range $63.72 – $189.86
Typical copayment $36.02 (range $15.93 – $47.46)
Most-billed visit code 99204
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
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.

Other Providers at the Same Location NPPES 20

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

Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Nurse Practitioner (Psychiatric/Mental Health)
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Internal Medicine
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824
Nurse Practitioner
290 LITTLETON RD UNIT 3
CHELMSFORD, MA 01824

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 Dagmara Osmanska-jac's NPI number?

The NPI number for Dagmara Osmanska-jac is 1053413138. It was assigned to this individual provider in the NPPES registry on September 1, 2006.

Where is Dagmara Osmanska-jac located?

Dagmara Osmanska-jac practices at 290 Littleton Rd Unit 3, Chelmsford, MA 01824. The listed phone number is (978) 685-2460.

What is Dagmara Osmanska-jac's specialty?

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

Is Dagmara Osmanska-jac enrolled in Medicare?

Yes. Dagmara Osmanska-jac 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.

What insurance does Dagmara Osmanska-jac accept?

Health plans from Anthem Blue Cross and Blue Shield list Dagmara Osmanska-jac 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 Dagmara Osmanska-jac affiliated with any hospitals?

According to CMS data, Dagmara Osmanska-jac is affiliated with Lowell General Hospital, Massachusetts General Hospital, Tufts Medical Center, Lahey Hospital & Medical Center, Burlington and Metrowest Medical Center.

When was this NPI record last updated?

The NPPES record for Dagmara Osmanska-jac was last updated on May 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.