RICHARD C MCMAHON MD
NPI 1114949823
Internal Medicine in Hudson, MA

Q: What is Richard Mcmahon's NPI number?

The NPI number for Richard Mcmahon is 1114949823. It was assigned to this individual provider in the NPPES registry on July 24, 2006.

Q: What is Richard Mcmahon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Richard Mcmahon was last updated on January 17, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 July 24, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 22D0725881 · Waiver

101 COOLIDGE ST, DOWNSTAIRS, HUDSON, MA 01749(978) 562-0757(978) 562-9299 Get Directions Write a Review

NPPES record last updated: January 17, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Richard C Mcmahon Md NPPES

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

RICHARD C MCMAHON MD (NPI 1114949823) is an individual internal medicine provider in Hudson, Massachusetts, licensed in Massachusetts (51250) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through August 31, 2028, and is affiliated with Umass Memorial Healthcare-marlborough Hospital.

NPPES Registry Identity

NPI1114949823

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameRICHARD C MCMAHONCredential: MD

Location Address101 COOLIDGE ST, DOWNSTAIRSHudson, MA 01749-1354

Mailing Address171 Main St Ste 203bAshland, MA 01721-1187 · (508) 881-3029 · Fax (508) 881-1752

Phone(978) 562-0757

Fax(978) 562-9299

Sole ProprietorNo

Medical School CMSTufts University School Of MedicineGraduated 1977

Enumeration DateJuly 24, 2006

Last NPPES UpdateJanuary 17, 2024

NPPES CertifiedJanuary 15, 2024

✔ NPI 1114949823 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MA · 51250

Definition

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.

101 COOLIDGE ST, Hudson, MA 01749

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Other Identifiers 1

Medicaid6177093MA

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

Richard C Mcmahon 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 ID2567418387

PECOS Enrollment IDI20050324000776

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 Richard Mcmahon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Kablotsky Internal Medicine PLLC

5.3 mi

Internal Medicine

1 CABOT RD STE 101
Hudson, MA 01749

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

NPI 1841096815 (978) 562-3536

Charles River Medical Associates PC

12 mi

Internal Medicine

600 WORCESTER RD, SUITE 303
Framingham, MA 01702

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

NPI 1598215204 (508) 881-3029

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 22D0725881

Richard C Mcmahon MD · Hudson, MA

Active · expires Aug 31, 2028

CLIA Number22D0725881

Laboratory TypePhysician Office

Certificate Effective DateSeptember 1, 2026

Certificate Expiration DateAugust 31, 2028

Laboratory DirectorRichard C. Mcmahon

Laboratory Phone(508) 562-0757

Laboratory LocationRichard C Mcmahon MD101 Coolidge Street, Hudson, MA 01749

CLIA data matches this NPI record on: Address

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 12

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.

466 services159 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

396 services166 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.

123 services123 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.

95 services95 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

41 services40 patients

Colorectal cancer screening; fecal occult blood test, immunoassay, 1-3 simultaneous G0328

A fecal occult blood test is a screening tool for colorectal cancer. It checks for tiny amounts of blood in your stool that can't be seen with the naked eye. The immunoassay method can test 1-3 samples at once. This helps detect cancer early, when treatment is most effective.

38 services38 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

37 services37 patients

Annual alcohol misuse screening, 5 to 15 minutes G0442

An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.

29 services29 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.

26 services23 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

14 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

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.

14 services13 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

14 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Umass Memorial Healthcare-Marlborough Hospital

Acute Care Hospitals · Marlborough, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220049

Location157 Union StreetMarlborough, MA 01752 · Middlesex County

Emergency services

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220163

Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01749 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 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

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 supplier11 claims11 services$68.36 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

2 suppliers24 claims24 services$197.38 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 supplier11 claims11 services$33.30 avg. paid by Medicare

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

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

COSMO DENTAL

Dentist (General Practice)