DR. BRETT C HYNNINEN M.D.
NPI 1629010947
Physical Medicine & Rehabilitation in Northampton, MA

Q: What is Brett Hynninen's NPI number?

The NPI number for Brett Hynninen is 1629010947. It was assigned to this individual provider in the NPPES registry on June 12, 2006.

Q: What is Brett Hynninen's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Q: When was this NPI record last updated?

The NPPES record for Brett Hynninen was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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 June 12, 2006PECOS EnrolledAccepts Medicare Assignment

766 N KING ST STE 2, NORTHAMPTON, MA 01060(413) 586-0230(413) 586-1068 Get Directions Write a Review

NPPES record last updated: June 25, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Brett C Hynninen M.d. NPPES

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

DR. BRETT C HYNNINEN M.D. (NPI 1629010947) is an individual physical medicine & rehabilitation provider in Northampton, Massachusetts, licensed in Massachusetts (161095) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of New York Medical College (1988).

NPPES Registry Identity

NPI1629010947

Entity TypeIndividualMale

Primary Taxonomy208100000X

Provider Legal NameDR. BRETT C HYNNINENCredential: M.D.

Location Address766 N KING ST STE 2Northampton, MA 01060-1143

Mailing Address271 Park StWest Springfield, MA 01089-3311 · (413) 785-1153 · Fax (413) 781-4951

Phone(413) 586-0230

Fax(413) 586-1068

Sole ProprietorNo

Medical School CMSNew York Medical CollegeGraduated 1988

Enumeration DateJune 12, 2006

Last NPPES UpdateJune 25, 2025

NPPES CertifiedJune 25, 2025

✔ NPI 1629010947 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Medicine & RehabilitationAllopathic & Osteopathic Physicians

Taxonomy Code208100000X

License✔ Licensed in MA · 161095

Definition

Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. These disabilities may arise from conditions affecting the musculoskeletal system such as neck and back pain, sports injuries, or other painful conditions affecting the limbs, such as carpal tunnel syndrome. Alternatively, the disabilities may result from neurological trauma or disease such as spinal cord injury, head injury or stroke. A physician certified in physical medicine and rehabilitation is often called a physiatrist. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation. Pain management is often an important part of the role of the physiatrist. For diagnosis and evaluation, a physiatrist may include the techniques of electromyography to supplement the standard history, physical, x-ray and laboratory examinations. The physiatrist has expertise in the appropriate use of therapeutic exercise, prosthetics (artificial limbs), orthotics and mechanical and electrical devices.

766 N KING ST STE 2, Northampton, MA 01060

Open in Google Maps ↗

Other Identifiers 6

Other25255MA · Hne

Other406529MA · Tufts

Other80558MA · Harvard Pilgrim

OtherJ21646MA · Bcbs

Other0001519VT · Medicare

Medicaid3199975MA

Accepted Insurance

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

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

Dr. Brett C Hynninen M.d. 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 ID1254304298

PECOS Enrollment IDI20040817001060

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 Reassignment

Medicare enrollment records show Brett Hynninen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pioneer Spine And Sports Physicians PC

18 mi

Physical Medicine & Rehabilitation

271 PARK ST
West Springfield, MA 01089

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

NPI 1346282621 (413) 785-1153

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

Areas of Expertise CMS Part B claims 23

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

47,502 services194 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.

725 services389 patients

Injection, dexamethasone sodium phosphate, 1 mg J1100

Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.

523 services27 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.

333 services204 patients

Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702

This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.

259 services122 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

229 services229 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

149 services23 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483

This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.

112 services90 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

100 services76 patients

Injection of lower or sacral spine facet joint using imaging guidance, single level 64493

This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.

88 services69 patients

Injection of lower or sacral spine facet joint using imaging guidance, second level 64494

This procedure involves injecting medication into the facet joints of your lower or sacral spine to manage pain. Imaging guidance ensures accurate placement. It's the second level, meaning it's done on two different joint levels.

85 services67 patients

Fluoroscopic guidance for needle placement 77002

Fluoroscopic guidance for needle placement is a medical procedure that uses a special X-ray technology to help accurately place a needle in the body. It's often used in biopsies, injections or other treatments to ensure precision and safety.

47 services43 patients

Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance 27096

This procedure involves injecting medicine into the joint where your lower spine meets your hip bone. Using special imaging technology, the doctor ensures the medicine is delivered accurately. This can help reduce pain and inflammation in that area.

37 services35 patients

Injection of trigger points, 1-2 muscles 20552

Trigger point injection is a procedure used to treat painful areas of muscle that contain trigger points, or knots of muscle that form when muscles do not relax. 1-2 muscles are typically treated in one session. The procedure involves injecting medications into these points to alleviate pain.

28 services21 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

20 services20 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level 64484

This procedure involves injecting an anesthetic or steroid drug into the sacral spine nerve root. It's done under imaging guidance to ensure accuracy. The process can be repeated for each additional level of the spine to help manage pain or inflammation.

19 services17 patients

Injection of anesthetic and/or steroid drug into upper or middle spine nerve root using imaging guidance, single level 64479

This procedure involves injecting anesthetic or steroid medication into a specific nerve root in the upper or middle spine. It's performed using imaging technology for precise placement. The aim is to reduce inflammation and alleviate pain.

18 services17 patients

Needle measurement of electrical activity in arm or leg muscles, complete study 95886

This procedure, known as an electromyography (EMG), involves inserting a small needle into your arm or leg muscles to measure their electrical activity. This complete study helps diagnose issues with nerves or muscles, providing valuable data for your treatment plan.

18 services17 patients

Injection, methylprednisolone acetate, 80 mg J1040

Methylprednisolone acetate is a strong anti-inflammatory medication. It is often given as an 80 mg injection to reduce inflammation and pain. It's commonly used for conditions like arthritis, allergic disorders, or other inflammatory diseases.

18 services17 patients

Nerve conduction, 5-6 studies 95909

Nerve conduction studies involve testing the speed and strength of signals traveling through your nerves. This helps identify any nerve damage or dysfunction. For 5-6 studies, this means multiple nerves will be tested. Small electrodes are placed on your skin to send and receive signals, causing minimal discomfort.

16 services16 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

16 services14 patients

Needle measurement of electrical activity in arm or leg muscles, limited study 95885

This procedure, known as an electromyography (EMG), involves placing tiny needles into your arm or leg muscles to measure their electrical activity. It's a limited study, meaning only specific muscles are tested. This helps identify any muscle or nerve dysfunction.

15 services12 patients

Injection of substance into lower spine canal using imaging guidance 62323

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

12 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220015

Location30 Locust StreetNorthampton, MA 01060 · Hampshire County

Emergency services Birthing friendly

Baystate Franklin Medical Center

Acute Care Hospitals · Greenfield, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220016

Location164 High StreetGreenfield, MA 01301 · Franklin County

Emergency services Birthing friendly

Other Providers at the Same Location NPPES

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

DR. DEREK C DAVIDSON D.O., MSPT

Physical Medicine & Rehabilitation

766 N KING ST STE 2
NORTHAMPTON, MA 01060

Hampshire County (413) 860-2305

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 Brett Hynninen's NPI number?

The NPI number for Brett Hynninen is 1629010947. It was assigned to this individual provider in the NPPES registry on June 12, 2006.

Where is Brett Hynninen located?

Brett Hynninen practices at 766 N King St Ste 2, Northampton, MA 01060. The listed phone number is (413) 586-0230.

What is Brett Hynninen's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Is Brett Hynninen enrolled in Medicare?

Yes. Brett Hynninen 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.

Which organization bills Medicare for Brett Hynninen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Brett Hynninen reassigns Medicare benefits to Pioneer Spine And Sports Physicians PC (West Springfield, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Brett Hynninen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Brett Hynninen accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Brett Hynninen 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 Brett Hynninen affiliated with any hospitals?

According to CMS data, Brett Hynninen is affiliated with Cooley Dickinson Hospital Inc,the and Baystate Franklin Medical Center.

When was this NPI record last updated?

The NPPES record for Brett Hynninen was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.