SEBASTIAN G SEPULVEDA MD
NPI 1558343129
Internal Medicine - Nephrology in Chelmsford, MA

Q: What is Sebastian Sepulveda's NPI number?

The NPI number for Sebastian Sepulveda is 1558343129. It was assigned to this individual provider in the NPPES registry on November 18, 2005.

Q: What is Sebastian Sepulveda's specialty?

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

Active since November 18, 2005PECOS EnrolledAccepts Medicare Assignment

9 NORTH RD, SUITE 101, CHELMSFORD, MA 01824(978) 458-2005(978) 452-5975 Get Directions Write a Review

NPPES record last updated: February 9, 2017. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Sebastian G Sepulveda Md NPPES

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

SEBASTIAN G SEPULVEDA MD (NPI 1558343129) is an individual nephrology provider in Chelmsford, Massachusetts, licensed in Massachusetts (204365) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Lowell General Hospital, and is a graduate of Other (1988).

NPPES Registry Identity

NPI1558343129

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameSEBASTIAN G SEPULVEDACredential: MD

Location Address9 NORTH RD, SUITE 101Chelmsford, MA 01824-2755

Mailing Address9 North Rd, Suite 101Chelmsford, MA 01824-2755 · (978) 458-2005 · Fax (978) 452-5975

Phone(978) 458-2005

Fax(978) 452-5975

Sole ProprietorYes

Medical School CMSOtherGraduated 1988

Enumeration DateNovember 18, 2005

Last NPPES UpdateFebruary 9, 2017

✔ NPI 1558343129 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 · 204365

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.

9 NORTH RD, Chelmsford, MA 01824

Open in Google Maps ↗

Other Identifiers 12

OtherJ22863Bc

Medicaid0168211MA

Other3100208United Health Care

Other1079119Aetna Pcp

Medicare UPING61218

Medicaid9751581MA

Other409950Tufts

OtherPTAN DD7599MA · Medicare Railroad

Other5895545Aetna Specialist

Other0022852Neighborhood Health

Other51894Fallon

Other69813Harvard Pilgrim

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.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

Sebastian G Sepulveda Md 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 ID42253841

PECOS Enrollment IDI20050602000805

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 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.

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.

1,553 services269 patients

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.

494 services192 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.

457 services95 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.

207 services152 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.

180 services132 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.

147 services19 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.

131 services111 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.

54 services43 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

50 services50 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

49 services49 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.

41 services17 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.

25 services14 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Emerson Hospital -

Acute Care Hospitals · W Concord, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220084

Location133 Old Road To 9 Acre CornerW Concord, MA 01742 · 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.

Referred Medical Equipment & Supplies CMS DME claims 4

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

1 supplier30 claims30 services$13.37 avg. paid by Medicare

Iv pole E0776

DME-Other DME · category DE000N

1 supplier11 claims11 services$4.76 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

1 supplier62 claims62 services$63.80 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier29 claims29 services$33.20 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Leave this field empty

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.

DR. DINA A ELIOPOULOS M.D.

Plastic Surgery

9 NORTH RD, SUITE 202
CHELMSFORD, MA 01824

Middlesex County (978) 275-9440

PETER A. ELIOPOULOS, D.M.D., P.C.

Clinic/Center (Dental)

9 NORTH RD, SUITE 102
CHELMSFORD, MA 01824

Middlesex County (978) 256-9838

DINELI, A PROFESSIONAL CORPORATION

Plastic Surgery

9 NORTH RD, SUITE 202
CHELMSFORD, MA 01824

Middlesex County (978) 275-9440

SEPULVEDA & ASSOCIATES, PC

Internal Medicine (Nephrology)

9 NORTH RD, SUITE 101
CHELMSFORD, MA 01824

Middlesex County (978) 458-2005

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 Sebastian Sepulveda's NPI number?

The NPI number for Sebastian Sepulveda is 1558343129. It was assigned to this individual provider in the NPPES registry on November 18, 2005.

Where is Sebastian Sepulveda located?

Sebastian Sepulveda practices at 9 North Rd Suite 101, Chelmsford, MA 01824. The listed phone number is (978) 458-2005.

What is Sebastian Sepulveda's specialty?

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

Is Sebastian Sepulveda enrolled in Medicare?

Yes. Sebastian Sepulveda 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 Sebastian Sepulveda accept?

Health plans from Anthem Blue Cross and Blue Shield list Sebastian Sepulveda 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 Sebastian Sepulveda affiliated with any hospitals?

According to CMS data, Sebastian Sepulveda is affiliated with Lowell General Hospital and Emerson Hospital -.

When was this NPI record last updated?

The NPPES record for Sebastian Sepulveda was last updated on February 9, 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.