DERYA BORA HAZAR M.D.
NPI 1659475366
Internal Medicine - Nephrology in Dorchester Center, MA

Q: What is Derya Hazar's NPI number?

The NPI number for Derya Hazar is 1659475366. It was assigned to this individual provider in the NPPES registry on September 12, 2006.

Q: What is Derya Hazar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Derya Hazar was last updated on July 28, 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.

Active since September 12, 2006PECOS EnrolledAccepts Medicare Assignment

2100 DORCHESTER AVE, SUITE 2204, DORCHESTER CENTER, MA 02124(617) 739-2100(617) 296-4330 Get Directions Write a Review

NPPES record last updated: July 28, 2017. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Derya Bora Hazar M.d. NPPES

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

DERYA BORA HAZAR M.D. (NPI 1659475366) is an individual nephrology provider in Dorchester Center, Massachusetts, licensed in Massachusetts (78328) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Sturdy Memorial Hospital, and is a graduate of Other (1990).

NPPES Registry Identity

NPI1659475366

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDERYA BORA HAZARCredential: M.D.

Location Address2100 DORCHESTER AVE, SUITE 2204Dorchester Center, MA 02124-5615

Mailing Address31 Pine St, Ste 204Norfolk, MA 02056-1680 · (617) 739-2100 · Fax (617) 296-4330

Phone(617) 739-2100

Fax(617) 296-4330

Sole ProprietorYes

Medical School CMSOtherGraduated 1990

Enumeration DateSeptember 12, 2006

Last NPPES UpdateJuly 28, 2017

✔ NPI 1659475366 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in MA · 78328

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

2100 DORCHESTER AVE, Dorchester Center, MA 02124

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Other Identifiers 1

Medicare UPIN02124MA

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

Derya Bora Hazar 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 ID8224119375

PECOS Enrollment IDI20081126000167

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

Medicare enrollment records show Derya Hazar reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The General Hospital Corporation

5.9 mi

General Acute Care Hospital

55 FRUIT ST, BULFINCH 360
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,234 clinicians in this Medicare group

NPI 1023049236 (617) 726-2000

Massachusetts General Physicians Organization Inc

5.9 mi

Dermatology

55 FRUIT ST, BUL 2
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,360 clinicians in this Medicare group

NPI 1801874573 (617) 724-0287

Cnv Bidco LLC

18 mi

Nephrology

31 PINE ST, SUITE 204
Norfolk, MA 02056

Reassigned Medicare billing, Massachusetts enrollment
4 clinicians in this Medicare group

NPI 1093119240 (617) 739-7100

Cnv Mw

18 mi

Nephrology

31 PINE ST STE 204
Norfolk, MA 02056

Reassigned Medicare billing, Massachusetts enrollment
3 clinicians in this Medicare group

NPI 1407321037 (617) 739-2100

NE Nephrology Home Care Associates

18 mi

Nephrology

31 PINE ST, SUITE 204
Norfolk, MA 02056

Reassigned Medicare billing, Massachusetts enrollment
10 clinicians in this Medicare group

NPI 1447302682 (617) 739-7100

New England Nephrology Associates

18 mi

Nephrology

31 PINE ST, SUITE 204
Norfolk, MA 02056

Reassigned Medicare billing, Massachusetts enrollment
18 clinicians in this Medicare group

NPI 1033261276 (617) 739-7100

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 13

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

293 services191 patients

Dialysis services, 1 physician visit per month (20 years or older) 90962

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys canâ€™t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.

227 services86 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

218 services80 patients

Home dialysis services per month (20 years or older) 90966

Home dialysis services provide kidney treatment for patients aged 20 or older right in their own homes. This service includes necessary equipment, supplies, and support for performing dialysis. It's a convenient option that allows patients to maintain their daily routines while receiving essential care.

141 services31 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

127 services109 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.

97 services57 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

96 services32 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

83 services45 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.

58 services56 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

57 services57 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.

52 services34 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.

49 services44 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Sturdy Memorial Hospital

Acute Care Hospitals · Attleboro, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220008

Location211 Park StreetAttleboro, MA 02703 · Bristol County

Emergency services Birthing friendly

Morton Hospital

Acute Care Hospitals · Taunton, MA

1/5 CMS rating

OwnershipProprietary

CMS Certification Number220073

Location88 Washington StreetTaunton, MA 02780 · Bristol County

Emergency services

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220100

Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County

Emergency services Birthing friendly

Newton-Wellesley Hospital

Acute Care Hospitals · Newton, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220101

Location2014 Washington StreetNewton, MA 02462 · Middlesex County

Emergency services Birthing friendly

Beth Israel Deaconess Hospital - Milton

Acute Care Hospitals · Milton, MA

4/5 CMS rating

OwnershipGovernment - Federal

CMS Certification Number220108

Location199 Reedsdale RoadMilton, MA 02186 · Norfolk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02124 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.

ELENA ROTFELD

Pharmacist

2100 DORCHESTER AVE, SEMC GPU AT CARNEY HOSPITAL
DORCHESTER, MA 02124

Suffolk County (617) 506-4536

DR. DANA MARIE HORNBEAK M.D., M.P.H.

Internal Medicine

2100 DORCHESTER AVE, CARITAS CARNEY HOSPITAL, 7 SOUTH
DORCHESTER, MA 02124

Suffolk County (617) 506-2726

CARITAS CARNEY HOSPITAL

Durable Medical Equipment & Medical Supplies

2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124

Suffolk County (617) 296-4000

CARITAS CARNEY HOSPITAL

Long Term Care Hospital

2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124

Suffolk County (617) 296-4000

BRECKON DANIEL PAV M.D.

Emergency Medicine

2100 DORCHESTER AVE
DORCHESTER, MA 02124

Suffolk County (617) 296-4000

RAMNINDER SINGH NAGRA MD

Internal Medicine

2100 DORCHESTER AVE
DORCHESTER, MA 02124

Suffolk County (617) 506-2726

DONNA L SPRINGS MD

Emergency Medicine

2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124

Suffolk County (617) 296-4000

MUSTAFA M SYED MD

Psychiatry & Neurology (Psychiatry)

2100 DORCHESTER AVE
DORCHESTER CENTER, MA 02124

Suffolk County (617) 296-4000

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 Derya Hazar's NPI number?

The NPI number for Derya Hazar is 1659475366. It was assigned to this individual provider in the NPPES registry on September 12, 2006.

Where is Derya Hazar located?

Derya Hazar practices at 2100 Dorchester Ave Suite 2204, Dorchester Center, MA 02124. The listed phone number is (617) 739-2100.

What is Derya Hazar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Derya Hazar enrolled in Medicare?

Yes. Derya Hazar 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 Derya Hazar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derya Hazar reassigns Medicare benefits to 6 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA), Cnv Bidco LLC (Norfolk, MA), Cnv Mw (Norfolk, MA), NE Nephrology Home Care Associates (Norfolk, MA) and 1 more organization, 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 Derya Hazar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Derya Hazar affiliated with any hospitals?

According to CMS data, Derya Hazar is affiliated with Sturdy Memorial Hospital, Morton Hospital, South Shore Hospital, Newton-Wellesley Hospital and Beth Israel Deaconess Hospital - Milton.

When was this NPI record last updated?

The NPPES record for Derya Hazar was last updated on July 28, 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.