DR. MARC SETH EFFRON M.D.
NPI 1023218815
Physical Medicine & Rehabilitation in King Of Prussia, PA

Q: What is Marc Effron's NPI number?

The NPI number for Marc Effron is 1023218815. It was assigned to this individual provider in the NPPES registry on July 20, 2007.

Q: What is Marc Effron'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 Marc Effron was last updated on April 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 20, 2007PECOS EnrolledAccepts Medicare Assignment

700 S HENDERSON RD, SUITE 308-C, KING OF PRUSSIA, PA 19406(610) 337-3111(610) 337-3506 Get Directions Write a Review

NPPES record last updated: April 6, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Dr. Marc Seth Effron M.d. NPPES

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

DR. MARC SETH EFFRON M.D. (NPI 1023218815) is an individual physical medicine & rehabilitation provider in King Of Prussia, Pennsylvania, licensed in Pennsylvania (MD433772) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Bryn Mawr Hospital, and is a graduate of Other (2003).

NPPES Registry Identity

NPI1023218815

Entity TypeIndividualMale

Primary Taxonomy208100000X

Provider Legal NameDR. MARC SETH EFFRONCredential: M.D.

Location Address700 S HENDERSON RD, SUITE 308-CKing Of Prussia, PA 19406-3530

Mailing Address700 S Henderson Rd, Suite 308-cKing Of Prussia, PA 19406-3530 · (610) 337-3111 · Fax (610) 337-3506

Phone(610) 337-3111

Fax(610) 337-3506

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateJuly 20, 2007

Last NPPES UpdateApril 6, 2021

NPPES CertifiedApril 6, 2021

✔ NPI 1023218815 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 PA · MD433772

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.

700 S HENDERSON RD, King Of Prussia, PA 19406

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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. Marc Seth Effron 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 ID1052485497

PECOS Enrollment IDI20080804000419

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 Marc Effron reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Roy M Lerman MD PC

Same address

Physical Medicine & Rehabilitation

700 S HENDERSON RD, STE 308C
King Of Prussia, PA 19406

Reassigned Medicare billing, Pennsylvania enrollment
Medicare enrollment name: Roy M Lerman M D P C
11 clinicians in this Medicare group

NPI 1215030812 (610) 337-3111

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 28

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.

Injection, rimabotulinumtoxinb, 100 units J0587

RimabotulinumtoxinB injection is a treatment involving the use of a specific medication to relax muscles. It's commonly used to address muscle stiffness/spasms. The medication is injected directly into the affected muscles by a healthcare professional.

3,251 services20 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.

931 services323 patients

Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110

This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.

571 services36 patients

Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes 97112

This therapy helps retrain your brain, nerves, and muscles to work together. Through targeted exercises, your body learns to regain lost functions or improve current abilities. Each session lasts 15 minutes.

558 services37 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

427 services212 patients

Therapy procedure using manual technique, each 15 minutes 97140

This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.

341 services27 patients

Therapy procedure using functional activities 97530

A therapy procedure using functional activities encourages you to use your own body movements in day-to-day tasks to aid recovery. It aims to improve your mobility, strength, and overall health by incorporating therapeutic exercises into your routine.

282 services17 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.

237 services156 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.

187 services145 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.

132 services132 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.

102 services79 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.

94 services74 patients

Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint 64635

This procedure involves using imaging guidance to accurately target and destroy nerves in the lower or sacral spinal facet joint. It's done to relieve chronic back pain. The process is safe and usually effective.

59 services55 patients

Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint 64636

This procedure involves using imaging technology to locate and treat nerves in your lower spine or sacral area that may be causing pain. Each additional facet joint refers to treating more than one spinal nerve. It's a non-invasive way to manage chronic back pain.

58 services55 patients

Injection of chemical for paralysis of nerve muscles on side of neck excluding voice box 64616

This procedure involves injecting a chemical into specific neck muscles, causing temporary paralysis. It's designed to alleviate symptoms related to nerve disorders. The voice box isn't affected, ensuring normal speech post-procedure.

41 services20 patients

Training for self-care or home management, each 15 minutes 97535

This service involves training sessions, each lasting 15 minutes, focused on teaching you essential self-care or home management skills. You'll learn techniques to manage your health condition at home, promoting independence and enhancing your quality of life.

41 services30 patients

Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle 95874

This procedure involves a needle that measures the electrical activity in your muscles. A chemical is then injected to temporarily paralyze the nerve muscle. This helps in diagnosing and treating certain muscle or nerve conditions.

40 services20 patients

X-ray of joint between lower spine and hip bone, 1-2 views 72200

An X-ray of the joint between your lower spine and hip bone, with 1-2 views, is a quick, painless test that produces images of the inside of your body. It helps doctors check for any abnormalities or injuries in this area.

38 services26 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.

37 services30 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.

36 services16 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.

33 services26 patients

Evaluation for physical therapy, typically 30 minutes 97162

An evaluation for physical therapy is a 30-minute session where a physical therapist assesses your current physical condition. They'll examine your strength, flexibility, balance, and mobility to identify areas needing improvement. This helps tailor a therapy plan to your specific needs.

32 services31 patients

Injection of cell or tissue-based material into spinal disc of lower back accessed through skin, first level 0627T

This procedure involves injecting cell or tissue-based material into a spinal disc in the lower back. It's done through the skin and aims to treat back pain or disc problems. It's a minimally invasive procedure, often performed under local anesthesia.

29 services22 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.

29 services25 patients

Testing for presence of drug, read by direct observation 80305

Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.

19 services19 patients

Destruction of nerves supplying joint between spine and pelvis using imaging guidance 64625

This procedure involves the use of imaging technology to accurately locate and destroy specific nerves in the joint between your spine and pelvis. The goal is to reduce pain by interrupting the nerve signals responsible for your discomfort.

18 services15 patients

Injection of upper or middle spine facet joint using imaging guidance, single level 64490

This procedure involves injecting medication into a joint in your upper or middle spine. It's performed under imaging guidance for precision. The aim is to reduce inflammation and pain. It's a single-level process, meaning one joint is treated at a time.

16 services11 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.

13 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Bryn Mawr Hospital

Acute Care Hospitals · Bryn Mawr, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390139

Location130 South Bryn Mawr AveBryn Mawr, PA 19010 · Montgomery County

Emergency services Birthing friendly

Paoli Hospital

Acute Care Hospitals · Paoli, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390153

Location255 West Lancaster AvenuePaoli, PA 19301 · Chester County

Emergency services Birthing friendly

Chester County Hospital

Acute Care Hospitals · West Chester, PA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390179

Location701 East Marshall StreetWest Chester, PA 19380 · Chester County

Emergency services Birthing friendly

Main Line Hospital Lankenau

Acute Care Hospitals · Wynnewood, PA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390195

Location100 Lancaster AveWynnewood, PA 19096 · Montgomery County

Emergency services Birthing friendly

Riddle Memorial Hospital

Acute Care Hospitals · Media, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390222

Location1068 West Baltimore PikeMedia, PA 19063 · Delaware County

Emergency services Birthing friendly

Referred Medical Equipment & Supplies CMS DME claims

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

Neuromuscular stimulator, electronic shock unit E0745

DME-Other DME · category DE000N

2 suppliers26 claims26 services$66.15 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 20

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

ROY M LERMAN MD PC

Physical Therapist

700 S HENDERSON RD, STE 300A
KING OF PRUSSIA, PA 19406

Montgomery County (610) 337-0427

DAVID HUTCHINSON

Physical Therapist (Electrophysiology, Clinical)

700 S HENDERSON RD, SUITE 200
KING OF PRUSSIA, PA 19406

Montgomery County (610) 768-5940

DR. SCOTT DAVIDOFF M.D.

Physical Medicine & Rehabilitation

700 S HENDERSON RD, SUITE 308 C
KING OF PRUSSIA, PA 19406

Montgomery County (610) 337-3111

JENNIFER HOTALING OT

Occupational Therapist (Hand)

700 S HENDERSON RD, SUITE 200
KING OF PRUSSIA, PA 19406

Montgomery County (610) 768-5940

DENIS PATRICK ROGERS MD

Physical Medicine & Rehabilitation

700 S HENDERSON RD, STE 308C
KING OF PRUSSIA, PA 19406

Montgomery County (610) 337-3111

JENIFER M HAINES OT

Occupational Therapist (Hand)

700 S HENDERSON RD, SUITE 200
KING OF PRUSSIA, PA 19406

Montgomery County (610) 768-5940

MAIN LINE VASCULAR INSTITUTE LLC

Radiology (Vascular & Interventional Radiology)

700 S HENDERSON RD, SUITE 304A
KING OF PRUSSIA, PA 19406

Montgomery County (215) 382-3680

ROY M LERMAN MD PC

Physical Medicine & Rehabilitation

700 S HENDERSON RD, STE 308C
KING OF PRUSSIA, PA 19406

Montgomery County (610) 337-3111

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 Marc Effron's NPI number?

The NPI number for Marc Effron is 1023218815. It was assigned to this individual provider in the NPPES registry on July 20, 2007.

Where is Marc Effron located?

Marc Effron practices at 700 S Henderson Rd Suite 308-C, King Of Prussia, PA 19406. The listed phone number is (610) 337-3111.

What is Marc Effron's specialty?

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

Is Marc Effron enrolled in Medicare?

Yes. Marc Effron 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 Marc Effron's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marc Effron reassigns Medicare benefits to Roy M Lerman MD PC (King Of Prussia, PA). 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 Marc Effron's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Marc Effron affiliated with any hospitals?

According to CMS data, Marc Effron is affiliated with Bryn Mawr Hospital, Paoli Hospital, Chester County Hospital, Main Line Hospital Lankenau and Riddle Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Marc Effron was last updated on April 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.