KASSEM SAFA M.D
NPI 1336397231
Internal Medicine - Nephrology in Boston, MA

NPI Status: Active since September 04, 2008

Contact Information

55 FRUIT ST
GRB-1003K
BOSTON, MA
ZIP 02114
Phone: (617) 726-2000

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  • Individual
  • Male
  • Years of Experience 20
  • Internal Medicine
  • Nephrology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About KASSEM SAFA

This page provides the complete NPI Profile along with additional information for Kassem Safa, an internist established in Boston, Massachusetts with a medical specialization in Internal Medicine, focusing in nephrology and more than 20 years of experience. The healthcare provider is registered in the NPI registry with number 1336397231 assigned on September 2008. The practitioner's primary taxonomy code is 207RN0300X with license number 253145 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1336397231
Provider Name
KASSEM SAFA M.D
Gender
Male
Entity Type
Individual
Location Address
55 FRUIT ST GRB-1003K BOSTON, MA 02114
Location Phone
(617) 726-2000
Mailing Address
55 FRUIT ST GRB-1003K BOSTON, MA 02114
Mailing Phone
(617) 726-2000
Medical School Name
OTHER
Graduation Year
2006
Is Sole Proprietor?
Yes
Enumeration Date
09-04-2008
Last Update Date
11-11-2025
Code Navigator

An internist like Kassem Safa is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine Nephrology

Taxonomy Code
207RN0300X
Type
Allopathic & Osteopathic Physicians
License No.
253145
License State
MA
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207P00000XAllopathic & Osteopathic Physicians

Emergency Medicine

253145 (MA)
2207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

253145 (MA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Anthem Bronze Preferred Blue PPO 6000/20%/8000 w/HSA - PPO
  • Anthem Bronze Preferred Blue PPO 7000/50%/8000 w/HSA - PPO
  • Anthem Bronze Preferred Blue PPO 7500/30%/10000 Value - PPO
  • Anthem Bronze Preferred Blue PPO 8500/50%/9200 - PPO
  • Anthem Gold Preferred Blue PPO 1000/20%/7500 - PPO
  • Anthem Gold Preferred Blue PPO 2000/0%/6500 RxD - PPO
  • Anthem Gold Preferred Blue PPO 2000/10%/4600 w/HSA - PPO
  • Anthem Gold Preferred Blue PPO 2000/10%/7500 - PPO
  • Anthem Gold Preferred Blue PPO 2000/20%/4600 w/HSA - PPO
  • Anthem Gold Preferred Blue PPO 3000/0%/7500 RxD - PPO
  • Anthem Gold Preferred Blue PPO 500/30%/9000 - PPO
  • Anthem Platinum Preferred Blue PPO 250/10%/3500 - PPO
  • Anthem Silver Preferred Blue PPO 2500/30%/10000 Value - PPO
  • Anthem Silver Preferred Blue PPO 3000/30%/9000 Value - PPO
  • Anthem Silver Preferred Blue PPO 3500/20%/10000 - PPO
  • Anthem Silver Preferred Blue PPO 3500/20%/7250 w/HSA - PPO
  • Anthem Silver Preferred Blue PPO 4000/0%/9000 - PPO
  • Anthem Silver Preferred Blue PPO 4000/0%/9000 RxD - PPO
  • Anthem Silver Preferred Blue PPO 4000/10%/7250 w/HSA - PPO
  • Anthem Silver Preferred Blue PPO 4000/20%/8500 - PPO
  • Anthem Bronze Pathway X Enhanced 6000/35% HSA - HMO
  • Anthem Bronze Pathway X Enhanced 7000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Bronze Pathway X Enhanced 7500/50% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
  • Anthem Catastrophic Pathway X Enhanced - HMO
  • Anthem Gold Pathway X Enhanced 1200/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Gold Pathway X Enhanced 2000/25% ($0 Virtual PCP + $0 Select Drug) Standard - HMO
  • Anthem Gold Pathway X Enhanced 700/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Heart Healthy Bronze Pathway X Enhanced 6000/40% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Heart Healthy Silver Pathway X Enhanced 4000/0% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Silver Pathway X Enhanced 4500/20% HSA - HMO
  • Anthem Silver Pathway X Enhanced 5500/20% ($0 Virtual PCP + $0 Select Drugs) - HMO
  • Anthem Silver Pathway X Enhanced 6000/40% ($0 Virtual PCP + $0 Select Drugs) Standard - HMO
  • Anthem Bronze Access Blue New England HMO 6000/20%/8000 w/HSA - HMO
  • Anthem Bronze Access Blue New England HMO 7000/50%/8000 w/HSA - HMO
  • Anthem Bronze Access Blue New England HMO 7500/30%/10000 Value - HMO
  • Anthem Bronze Access Blue New England HMO 8500/50%/9200 - HMO
  • Anthem Bronze Pathway X HMO 6000/20%/8000 w/HSA - HMO
  • Anthem Bronze Pathway X HMO 7000/50%/8000 w/HSA - HMO
  • Anthem Bronze Pathway X HMO 7500/30%/10000 Value - HMO
  • Anthem Bronze Pathway X HMO 8500/50%/9200 - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Kassem Safa is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Kassem Safa is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1557524675

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20150616002250

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Provider Referred Orders for Durable Medical Equipment, Devices & Supplies

The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.

Unknown

  • Treatment-Treatment - Miscellaneous (RX029N)

    Azathioprine, oral, 50 mg (HCPCS:J7500)

    7 DME suppliers used 54 Medicare Claims 2530 Services Paid

  • Treatment-Chemotherapy (RH002N)

    Tacrolimus, extended release, (envarsus xr), oral, 0.25 mg (HCPCS:J7503)

    6 DME suppliers used 107 Medicare Claims 43110 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Tacrolimus, immediate release, oral, 1 mg (HCPCS:J7507)

    42 DME suppliers used 607 Medicare Claims 74093 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Tacrolimus, extended release, (astagraf xl), oral, 0.1 mg (HCPCS:J7508)

    1 DME suppliers used 12 Medicare Claims 27900 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Prednisone, immediate release or delayed release, oral, 1 mg (HCPCS:J7512)

    31 DME suppliers used 496 Medicare Claims 80125 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Cyclosporine, oral, 25 mg (HCPCS:J7515)

    3 DME suppliers used 13 Medicare Claims 3540 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Mycophenolate mofetil, oral, 250 mg (HCPCS:J7517)

    13 DME suppliers used 113 Medicare Claims 13748 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Mycophenolic acid, oral, 180 mg (HCPCS:J7518)

    28 DME suppliers used 499 Medicare Claims 59485 Services Paid

  • Treatment-Treatment - Miscellaneous (RX029N)

    Sirolimus, oral, 1 mg (HCPCS:J7520)

    8 DME suppliers used 30 Medicare Claims 816 Services Paid

  • Treatment-Chemotherapy (RH012N)

    Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period (HCPCS:Q0511)

    73 DME suppliers used 778 Medicare Claims 778 Services Paid

  • Treatment-Chemotherapy (RH012N)

    Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period (HCPCS:Q0512)

    56 DME suppliers used 882 Medicare Claims 1207 Services Paid

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 38 times for 32 patients

Established patient office or other outpatient visit, 40-54 minutes

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

This service was performed 231 times for 90 patients

Follow-up hospital inpatient care per day, typically 25 minutes

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.

This service was performed 132 times for 60 patients

Follow-up hospital inpatient care per day, typically 35 minutes

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.

This service was performed 172 times for 79 patients

Hemodialysis procedure with physician evaluation

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.

This service was performed 24 times for 12 patients

Initial hospital inpatient care per day, typically 70 minutes

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.

This service was performed 74 times for 69 patients

Telephone medical discussion with physician, 21-30 minutes

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

This service was performed 124 times for 90 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $36.02 for a new patient copayment and $27.79 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 02114 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $144.11
  • Minimum New Patient Price $63.72
  • Maximum New Patient Price $189.86
  • Average New Patient Copayment $36.02
  • Minimum New Patient Copayment $15.93
  • Maximum New Patient Copayment $47.46

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $111.18
  • Minimum Established Patient Price $21.07
  • Maximum Established Patient Price $155.29
  • Average Established Patient Copayment $27.79
  • Minimum Established Patient Copayment $5.26
  • Maximum Established Patient Copayment $38.82

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Kassem Safa is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
NORTH SHORE MEDICAL CENTER -81 HIGHLAND AVENUE
SALEM, MA 01970
(978) 741-1215Acute Care Hospitals
MASSACHUSETTS GENERAL HOSPITAL55 FRUIT STREET
BOSTON, MA 02114
(617) 724-9725Acute Care Hospitals
NEWTON-WELLESLEY HOSPITAL2014 WASHINGTON STREET
NEWTON, MA 02462
(617) 243-6000Acute Care Hospitals
BRIGHAM AND WOMEN'S HOSPITAL75 FRANCIS STREET
BOSTON, MA 02115
(617) 732-5500Acute Care Hospitals
WENTWORTH-DOUGLASS HOSPITAL789 CENTRAL AVE
DOVER, NH 03820
(603) 740-2580Acute Care Hospitals

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1336397231, we treat the final digit (1) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
3
Doubled → 6
Pos 6
9
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
1
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 3 → 6 3 → 6 7 → 14 → 5 3 → 6

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 6 + 6 + 6 + 9 + 1 + 4 + 2 + 6 + 24 = 69

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1336397231.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Internal Medicine (Gastroenterology)
55 FRUIT ST
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
55 FRUIT ST, WARREN 1220
BOSTON, MA 02114
Internal Medicine (Gastroenterology)
55 FRUIT ST
BOSTON, MA 02114
Internal Medicine
55 FRUIT ST, 4710B
BOSTON, MA 02114
Thoracic Surgery (Cardiothoracic Vascular Surgery)
55 FRUIT ST, BUL 119
BOSTON, MA 02114
Thoracic Surgery (Cardiothoracic Vascular Surgery)
55 FRUIT ST, MGH, BULFINCH 2
BOSTON, MA 02114
Urology
55 FRUIT ST, GRB 1102
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, CLN 3
BOSTON, MA 02114
Orthopaedic Surgery
55 FRUIT ST, YAW 3E ORTHOPAEDIC ASSOCIATES
BOSTON, MA 02114
Pathology (Anatomic Pathology)
55 FRUIT ST, PATHOLOGY ASSOCIATES WRN 2
BOSTON, MA 02114
Pathology (Anatomic Pathology & Clinical Pathology)
55 FRUIT ST, GRB 5 PATHOLOGY ASSOCIATES
BOSTON, MA 02114
Psychologist
55 FRUIT ST, YAW 6A MASSACHUSSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Internal Medicine (Pulmonary Disease)
55 FRUIT ST
BOSTON, MA 02114
Anesthesiology (Pain Medicine)
55 FRUIT ST, CLN 309 ANESTHESIA ASSOCIATES
BOSTON, MA 02114
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 FRUIT ST, WEL 5
BOSTON, MA 02114
Internal Medicine
55 FRUIT ST, INFECTIOUS DISEASE ASSOCIATES GRJ 504
BOSTON, MA 02114
Psychiatry & Neurology (Psychiatry)
55 FRUIT ST, S50 4 MASSACHUSETTS GENERAL HOSPITAL
BOSTON, MA 02114
Anesthesiology
55 FRUIT ST, CLN 3
BOSTON, MA 02114
Internal Medicine (Infectious Disease)
55 FRUIT ST, FND 8 INFECTIOUS DISEASE ASSOCIATES
BOSTON, MA 02114
Anesthesiology (Critical Care Medicine)
55 FRUIT ST, ANESTHESIA ASSOCIATES GRB 406E
BOSTON, MA 02114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336397231, enumerated as an "individual" on September 04, 2008.

The provider is located at 55 FRUIT ST GRB-1003K BOSTON, MA 02114 and the phone number is (617) 726-2000.

Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.

The provider might be accepting Accepts: Anthem Blue Cross and Blue Sheld and Anthem Blue. Please consult your insurance carrier or call the provider to verify.

Kassem Safa is affiliated with: NORTH SHORE MEDICAL CENTER -, MASSACHUSETTS GENERAL HOSPITAL, NEWTON-WELLESLEY HOSPITAL, BRIGHAM AND WOMEN'S HOSPITAL and WENTWORTH-DOUGLASS HOSPITAL.