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Rian Mccormack

Physician Assistant • Somerville, MA

Active NPI 1699186312 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

33 Bow St
Somerville, MA 021432937

Call 6176259992 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

33 Bow St

Somerville, MA 021432937

Telephone 6176259992
Fax 6176660662
Organization at the Same NPPES Address or Phone
David Menon Corporation Facility NPI 1891709309

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: 360 Healthcare Llc. 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

Graduation Year

2012

Medicare patients

252 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 $179,836 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 $139,621 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

904 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

$64,600 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 $82.18 in 2024

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 2024.

Guide: How to read an Open Payments record

Years since graduation

14 years (graduated 2012)

CMS Doctors and Clinicians data list 2012 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

2014

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

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

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)

Rian Mccormack 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 Rian Mccormack 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 Somerville and Massachusetts

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Somerville, MA (2024, 12 clinicians with data). Median for this group: 201. Middle half: 98 to 1,134.

More Medicare Part B services than 90% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: 222. Middle half: 79 to 552.

Medicare-allowed amount

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Somerville, MA (2024, 12 clinicians with data). Median for this group: $21,558. Middle half: $5,120 to $34,205.

A higher Medicare-allowed amount than 95% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: $19,073. Middle half: $6,686 to $39,911.

Paid by Medicare

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Somerville, MA (2024, 12 clinicians with data). Median for this group: $18,313. Middle half: $3,635 to $25,028.

A higher Medicare payment amount than 95% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,142 clinicians with data). Median for this group: $14,188. Middle half: $5,025 to $29,930.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Somerville, MA (2024, 14 clinicians with data). Median for this group: 108. Middle half: 41 to 202.

More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,255 clinicians with data). Median for this group: 175. Middle half: 52 to 564.

Part D drug cost

A higher Part D drug cost than 80% of clinicians listed under Physician Assistant in Somerville, MA (2024, 14 clinicians with data). Median for this group: $967. Middle half: $163 to $39,994.

A higher Part D drug cost than 75% of clinicians listed under Physician Assistant in Massachusetts (2024, 2,255 clinicians with data). Median for this group: $2,484. Middle half: $458 to $50,541.

20 active clinicians are listed under Physician Assistant with a practice address in Somerville, MA (4,715 in Massachusetts).

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

Telehealth indicator in Somerville

25% of these 20 clinicians have the CMS telehealth indicator.

75% of these 20 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 (2024), 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 2024
Disclosure Year:

Program year 2024 (payments made January 1 – December 31, 2024): fewer than 11 records totaling $82.18.

Manufacturer Payment Nature Product Type Amount ($)
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
FARXIGA General $82.18

Source: CMS Open Payments, program year 2024, 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 2022–2023 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, 2023–2024; 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
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes
1,323 223 $288.70 $97.25
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more
464 159 $219.21 $67.55
99310 Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes
81 65 $425.01 $138.65
99316 Nursing facility discharge management, more than 30 minutes
67 61 $340.00 $117.38
99497 Advance care planning, first 30 minutes
11 11 $264.55 $66.94

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
Lorazepam Lorazepam 127 2,798 $1,651.77 21
Eliquis Apixaban 79 1,498 $30,179.87 14
Quetiapine Fumarate Quetiapine Fumarate 57 1,664 $1,568.45 —
Amlodipine Besylate Amlodipine Besylate 50 1,181 $452.84 16
Clonazepam Clonazepam 50 1,038 $515.02 —
Tramadol Hcl Tramadol Hcl 46 912 $567.33 11
Atorvastatin Calcium Atorvastatin Calcium 38 1,120 $635.92 14
Trazodone Hcl Trazodone Hcl 35 902 $398.53 —
Pregabalin Pregabalin 32 497 $485.30 —
Metoprolol Succinate Metoprolol Succinate 28 713 $729.88 —
Escitalopram Oxalate Escitalopram Oxalate 24 513 $284.81 —
Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl 24 360 $4,615.31 —
Furosemide Furosemide 23 419 $155.60 —
Mirtazapine Mirtazapine 21 592 $383.02 12
Lisinopril Lisinopril 20 296 $136.80 —
Oxycodone Hcl Oxycodone Hcl 19 201 $259.20 —
Torsemide Torsemide 18 272 $311.92 —
Morphine Sulfate Morphine Sulfate 18 198 $199.83 14
Spironolactone Spironolactone 17 289 $96.47 —
Aripiprazole Aripiprazole 17 510 $252.66 —
Lorazepam Intensol Lorazepam 16 430 $599.90 —
Xcopri Cenobamate 16 256 $10,746.66 —
Sertraline Hcl Sertraline Hcl 15 450 $157.22 —
Levothyroxine Sodium Levothyroxine Sodium 14 420 $194.26 —
Famotidine Famotidine 14 420 $148.49 —

(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

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES MA PA4876

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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

Medicare (PECOS) Enrollment & Ordering Eligibility

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

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20230510001409

Enrollment State Jurisdiction

MA

PECOS Control ID

8527354612

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

360 Healthcare Llc

10 Mall Rd, Burlington, MA 018034121

Phone: 7814886843

Clinicians Sharing This Practice Address or Phone

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

1 listed
Margarita Hermosa Rice , NP

Nurse Practitioner - Adult Health

NPI 1962632513

Nurse Practitioner

Career & Practice History

NPI enumerated May 15, 2014.

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.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1699186312
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 15, 2014
Last Update: May 15, 2014
Sole Proprietor: No

Other Physician Assistants in Somerville

All Physician Assistants in Somerville

Mailing Address

33 Bow St

Somerville, MA 021432937

Phone: 6176259992

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.