Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Walid G Bader , DO

Internal Medicine • Beverly, MA

Active NPI 1134184161 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

77 Herrick St, Suite 101
Beverly, MA 019152734

Call 9789274110 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

77 Herrick St
Suite 101

Beverly, MA 019152734

Telephone 9789274110
Fax 9782327057
Organization at the Same NPPES Address or Phone
Medical Group Inc Facility NPI 1801810213

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Atrius Health Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of New England, College Of Osteo Medicine

Graduation Year

2002

Medicare patients

342 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $107,449 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $75,820 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

12,284 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$449,618 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $18.87 in 2021

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2021.

Guide: How to read an Open Payments record

Years since graduation

24 years (graduated 2002)

CMS Doctors and Clinicians data list 2002 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Bader has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Bader as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Beverly and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Beverly, MA (2024, 23 clinicians with data). Median for this group: 850. Middle half: 487 to 2,111.

More Medicare Part B services than 95% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: 524. Middle half: 200 to 1,073.

Medicare-allowed amount

Close to the middle for clinicians listed under Internal Medicine in Beverly, MA (2024, 23 clinicians with data). Median for this group: $73,879. Middle half: $50,327 to $141,898.

A higher Medicare-allowed amount than 75% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: $50,126. Middle half: $19,685 to $96,485.

Paid by Medicare

Close to the middle for clinicians listed under Internal Medicine in Beverly, MA (2024, 23 clinicians with data). Median for this group: $59,076. Middle half: $38,910 to $113,532.

A higher Medicare payment amount than 75% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,795 clinicians with data). Median for this group: $38,152. Middle half: $14,838 to $74,912.

Medicare Part D prescriptions

More Part D prescriptions than 65% of clinicians listed under Internal Medicine in Beverly, MA (2024, 20 clinicians with data). Median for this group: 2,993. Middle half: 282 to 5,558.

More Part D prescriptions than 80% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,672 clinicians with data). Median for this group: 1,174. Middle half: 129 to 3,740.

Part D drug cost

A higher Part D drug cost than 80% of clinicians listed under Internal Medicine in Beverly, MA (2024, 20 clinicians with data). Median for this group: $130,580. Middle half: $18,806 to $390,908.

A higher Part D drug cost than 80% of clinicians listed under Internal Medicine in Massachusetts (2024, 3,672 clinicians with data). Median for this group: $103,819. Middle half: $9,088 to $319,703.

37 active clinicians are listed under Internal Medicine with a practice address in Beverly, MA (6,830 in Massachusetts).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Beverly

35.1% of these 37 clinicians have the CMS telehealth indicator.

59.5% of these 37 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2021

Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $18.87.

Manufacturer Payment Nature Product Type Amount ($)
GlaxoSmithKline, LLC.
Food and Beverage
In-kind items and services
TRELEGY ELLIPTA General $18.87

Source: CMS Open Payments, program year 2021, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
36415 Insertion of needle into vein for collection of blood sample
508 258 $20.00 $8.65
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
389 263 $351.06 $74.55
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
292 181 $529.00 $109.69
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
203 203 $363.00 $48.32
80061 Blood test, lipids (cholesterol and triglycerides)
180 178 $67.00 $13.12
83036 Hemoglobin a1c level
176 123 $39.00 $9.52
85610 Blood test, clotting time
121 12 $16.00 $4.20
85027 Complete blood cell count (red cells, white blood cell, platelets), automated test
118 105 $26.00 $6.34
80048 Blood test, basic group of blood chemicals (calcium, total)
112 95 $34.00 $8.29
82565 Blood creatinine level
105 98 $21.00 $5.02
G0008 Administration of influenza virus vaccine
84 82 $70.00 $32.81
82570 Creatinine level to test for kidney function or muscle injury
78 70 $21.00 $5.08
82043 Urine microalbumin (protein) level
76 70 $23.00 $5.66
84460 Liver enzyme (sgpt), level
71 69 $21.00 $5.14
90653 Influenza vaccine, inactivated
70 70 $139.43 $81.82
84443 Blood test, thyroid stimulating hormone (tsh)
69 59 $68.00 $16.46
82306 Vitamin d-3 level
55 49 $119.00 $29.01
84132 Blood potassium level
53 53 $19.00 $4.66
84153 Psa (prostate specific antigen) measurement, total
48 43 $74.00 $18.02
81003 Automated urinalysis test
45 36 $9.00 $2.20
90480 Admn sarscov2 vacc 1 dose
45 45 $70.00 $43.76
91320 Sarscv2 vac 30mcg trs-suc im
45 45 $167.44 $138.20
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
36 33 $48.00 $16.38
82607 Cyanocobalamin (vitamin b-12) level
31 30 $61.00 $14.78
84295 Blood sodium level
30 30 $19.00 $4.71

(top 25 shown)

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 431 37,180 $6,788.74 130
Amlodipine Besylate Amlodipine Besylate 384 29,898 $3,077.10 98
Lisinopril Lisinopril 279 23,189 $2,209.20 79
Simvastatin Simvastatin 254 20,717 $2,279.77 63
Levothyroxine Sodium Levothyroxine Sodium 202 15,562 $1,853.47 50
Omeprazole Omeprazole 169 12,716 $3,532.56 48
Eliquis Apixaban 162 7,450 $141,162.85 26
Metoprolol Succinate Metoprolol Succinate 159 13,618 $3,351.07 49
Albuterol Sulfate Hfa Albuterol Sulfate 157 6,381 $7,087.13 54
Rosuvastatin Calcium Rosuvastatin Calcium 144 12,239 $4,699.77 43
Metformin Hcl Metformin Hcl 141 11,546 $1,292.61 43
Losartan Potassium Losartan Potassium 124 10,327 $1,628.82 32
Hydrochlorothiazide Hydrochlorothiazide 120 10,016 $214.59 33
Furosemide Furosemide 117 8,080 $665.02 30
Atenolol Atenolol 102 8,676 $1,030.12 30
Allopurinol Allopurinol 100 8,657 $1,309.09 32
Lorazepam Lorazepam 96 2,233 $471.72 19
Trazodone Hcl Trazodone Hcl 87 5,674 $884.87 23
Sertraline Hcl Sertraline Hcl 83 6,245 $686.94 23
Metformin Hcl Er Metformin Hcl 83 6,603 $989.11 21
Tamsulosin Hcl Tamsulosin Hcl 77 6,676 $1,498.73 28
Ozempic Semaglutide 77 2,556 $81,697.67 23
Wixela Inhub Fluticasone Propion/Salmeterol 77 3,840 $10,755.65 20
Citalopram Hbr Citalopram Hydrobromide 71 4,984 $685.52 23
Gabapentin Gabapentin 66 2,713 $1,342.03 14

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2021-01-06
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES MA 224414

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.

Internal Medicine

NUCC Taxonomy Code: 207R00000X

License # reported to NPPES SC 1117

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Massachusetts Board of Registration in Medicine.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
2113601 (MA)
Medicaid ID
011178 (SC)
Other Identifier Medicaid
WB58304 (RI)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - INTERNAL MEDICINE

Medicare Enrollment ID

I20050926000702

Enrollment State Jurisdiction

MA

PECOS Control ID

6204860562

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Atrius Health Inc

20 Wall St, Burlington, MA 018034758

Phone: 7812212500

Atrius Health Inc

100 2nd Ave, Needham, MA 024942809

Phone: 7817264800

Atrius Health Inc

133 Brookline Ave, Boston, MA 022153904

Phone: 6174211000

Atrius Health Inc

77 Herrick St, Beverly, MA 019152734

Phone: 9789274110

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

15 listed
Dr. Michael Aaronson , MD

Internal Medicine - Gastroenterology

NPI 1366547739

Doctor of Medicine (M.D.)

Anita Ash , ANP-BC

Nurse Practitioner - Adult Health

NPI 1093066144

ANPBC

Dr. Edward Bahng , MD

Family Medicine

NPI 1790165546

Doctor of Medicine (M.D.)

Nancy Cummings , NP

Nurse Practitioner

NPI 1578626693

Nurse Practitioner

Dr. S Lawson Derby , MD

Internal Medicine - Cardiovascular Disease

NPI 1841215522

Doctor of Medicine (M.D.)

Ashley Disciullo , FNP

Nurse Practitioner - Family

NPI 1710637806

Family Nurse Practitioner

Career & Practice History

NPI enumerated April 20, 2006.

No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.

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NPI Administrative Meta

NPI Number: 1134184161
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 20, 2006
Last Update: January 06, 2021
Sole Proprietor: No

Other Internal Medicine Providers in Beverly

All Internal Medicine Providers in Beverly

Mailing Address

77 Herrick St, Suite 101

Beverly, MA 019152734

Phone: 9789274110

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.