DR. JOHN H MARKS MD
NPI 1346212594
Colon & Rectal Surgery in Wynnewood, PA

Q: What is John Marks's NPI number?

The NPI number for John Marks is 1346212594. It was assigned to this individual provider in the NPPES registry on February 2, 2006.

Q: What is John Marks's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Q: When was this NPI record last updated?

The NPPES record for John Marks was last updated on October 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 February 02, 2006PECOS EnrolledAccepts Medicare Assignment

100 E LANCASTER AVE, SUITE 330 LANKENAU MOB WEST, WYNNEWOOD, PA 19096(610) 645-9093(610) 645-9476 Get Directions Write a Review

NPPES record last updated: October 21, 2015. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. John H Marks Md NPPES

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

DR. JOHN H MARKS MD (NPI 1346212594) is an individual colon & rectal surgery provider in Wynnewood, Pennsylvania, licensed in Pennsylvania (MD046073L) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Bryn Mawr Hospital, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (1989).

NPPES Registry Identity

NPI1346212594

Entity TypeIndividualMale

Primary Taxonomy208C00000X

Provider Legal NameDR. JOHN H MARKSCredential: MD

Location Address100 E LANCASTER AVE, SUITE 330 LANKENAU MOB WESTWynnewood, PA 19096-3450

Mailing Address100 E Lancaster Ave, Suite 330 Lankenau Mob WestWynnewood, PA 19096-3450 · (610) 645-9093 · Fax (610) 645-9476

Phone(610) 645-9093

Fax(610) 645-9476

Sole ProprietorNo

Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 1989

Enumeration DateFebruary 2, 2006

Last NPPES UpdateOctober 21, 2015

✔ NPI 1346212594 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208C00000X

License✔ Licensed in PA · MD046073L

Definition

A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.

100 E LANCASTER AVE, Wynnewood, PA 19096

Open in Google Maps ↗

Other Identifiers 1

Medicare UPING19601

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. John H Marks 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 ID3274658877

PECOS Enrollment IDI20100920001097

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.

Areas of Expertise CMS Part B claims 14

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 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.

132 services109 patients

Diagnostic exam of lower portion of large bowel using a flexible endoscope 45330

This procedure, known as a sigmoidoscopy, involves using a flexible tube with a camera to examine the lower part of your large bowel. It helps in identifying issues like inflammation, ulcers, or abnormal growths. It's a safe, minimally invasive procedure.

124 services103 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.

78 services57 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.

71 services59 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

70 services35 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

67 services67 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

53 services53 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

26 services26 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

24 services24 patients

Diagnostic exam of anus using an endoscope 46600

This procedure involves using a thin, flexible instrument called an endoscope to examine the anal area. It helps detect any abnormal conditions or issues. It's a safe, routine exam performed by a healthcare professional.

20 services16 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.

17 services17 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.

16 services16 patients

Biopsy of lower large bowel using a flexible endoscope 45331

A biopsy of the lower large bowel involves using a flexible tube with a camera (endoscope) to examine this part of your digestive tract. Small tissue samples may be taken for further examination to detect any abnormalities.

15 services15 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

14 services12 patients

Hospital Affiliations CMS Care Compare 4

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19096 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

$92.69 typical visit price

range $59.88 – $180.99

Typical copayment $23.17 (range $14.97 – $45.24)

Most-billed visit code 99203

Established Patient

$74.47 typical visit price

range $19.30 – $147.29

Typical copayment $18.61 (range $4.82 – $36.82)

Most-billed visit code 99213

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 17

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

Skin barrier; solid, 4 x 4 or equivalent; each A4362

DME-Orthotic Devices · category DF010N

8 suppliers48 claims945 services$3.07 avg. paid by Medicare

Ostomy belt, each A4367

DME-Orthotic Devices · category DF010N

3 suppliers21 claims33 services$4.81 avg. paid by Medicare

Ostomy skin barrier, powder, per oz A4371

DME-Orthotic Devices · category DF010N

6 suppliers41 claims49 services$3.53 avg. paid by Medicare

Ostomy skin barrier, solid 4 x 4 or equivalent, extended wear, without built-in convexity, each A4385

DME-Orthotic Devices · category DF010N

7 suppliers69 claims1,391 services$4.75 avg. paid by Medicare

Ostomy pouch, drainable, with barrier attached, with built-in convexity (1 piece), each A4389

DME-Orthotic Devices · category DF010N

4 suppliers27 claims710 services$5.68 avg. paid by Medicare

Ostomy deodorant, with or without lubricant, for use in ostomy pouch, per fluid ounce A4394

DME-Orthotic Devices · category DF010N

6 suppliers38 claims668 services$2.45 avg. paid by Medicare

Ostomy skin barrier, pectin-based, paste, per ounce A4406

DME-Orthotic Devices · category DF010N

6 suppliers33 claims134 services$4.09 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible, or accordion), extended wear, with built-in convexity, 4 x 4 inches or smaller, each A4407

DME-Orthotic Devices · category DF010N

4 suppliers19 claims500 services$7.81 avg. paid by Medicare

Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409

DME-Orthotic Devices · category DF010N

4 suppliers16 claims415 services$4.48 avg. paid by Medicare

Ostomy pouch, closed, with barrier attached, with filter (1 piece), each A4416

DME-Orthotic Devices · category DF010N

3 suppliers20 claims1,140 services$2.67 avg. paid by Medicare

Ostomy pouch, closed; for use on barrier with non-locking flange, with filter (2 piece), each A4419

DME-Orthotic Devices · category DF010N

1 supplier16 claims1,440 services$1.67 avg. paid by Medicare

Ostomy pouch, drainable; for use on barrier with non-locking flange, with filter (2 piece system), each A4425

DME-Orthotic Devices · category DF010N

3 suppliers22 claims500 services$3.21 avg. paid by Medicare

Tape, waterproof, per 18 square inches A4452

DME-Medical/Surgical Supplies · category DA000N

4 suppliers11 claims480 services$0.31 avg. paid by Medicare

Adhesive remover, wipes, any type, each A4456

DME-Medical/Surgical Supplies · category DA000N

10 suppliers83 claims4,556 services$0.22 avg. paid by Medicare

Ostomy pouch, drainable, with extended wear barrier attached, with filter, (1 piece), each A5056

DME-Orthotic Devices · category DF010N

5 suppliers11 claims190 services$4.51 avg. paid by Medicare

Ostomy pouch, drainable; with barrier attached, (1 piece), each A5061

DME-Orthotic Devices · category DF010N

3 suppliers19 claims520 services$3.42 avg. paid by Medicare

Skin barrier, wipes or swabs, each A5120

DME-Orthotic Devices · category DF010N

10 suppliers71 claims2,347 services$0.22 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.

DR. AKHNUWKH JONES M.D.

Internal Medicine

100 E LANCASTER AVE
WYNNEWOOD, PA 19096

Montgomery County (610) 645-2000

AMANDA B CHRISTINI MD

Internal Medicine

100 E LANCASTER AVE, 4 PAVILION, SUITE 4303
WYNNEWOOD, PA 19096

Montgomery County (484) 476-6421

LAI KWAN LOUIE RPH

Pharmacist

100 E LANCASTER AVE, SUITE #12
WYNNEWOOD, PA 19096

Montgomery County (610) 658-8640

DANIEL WANG MD

Internal Medicine

100 E LANCASTER AVE, 4 PAVILION STE 4303
WYNNEWOOD, PA 19096

Montgomery County (484) 476-6421

SARAH TYRRELL CRNA

Nurse Anesthetist, Certified Registered

100 E LANCASTER AVE
WYNNEWOOD, PA 19096

Montgomery County (610) 645-2000

MARGARET MACK

Student in an Organized Health Care Education/Training Program

100 E LANCASTER AVE
WYNNEWOOD, PA 19096

Montgomery County (610) 642-3796

XIAOLING YU MD

Hospitalist

100 E LANCASTER AVE
WYNNEWOOD, PA 19096

Montgomery County (484) 476-6421

JONATHAN HONGYI CHEN MD

Student in an Organized Health Care Education/Training Program

100 E LANCASTER AVE
WYNNEWOOD, PA 19096

Montgomery County (484) 476-2000

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 John Marks's NPI number?

The NPI number for John Marks is 1346212594. It was assigned to this individual provider in the NPPES registry on February 2, 2006.

Where is John Marks located?

John Marks practices at 100 E Lancaster Ave Suite 330 Lankenau Mob West, Wynnewood, PA 19096. The listed phone number is (610) 645-9093.

What is John Marks's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Is John Marks enrolled in Medicare?

Yes. John Marks 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.

Is John Marks affiliated with any hospitals?

According to CMS data, John Marks is affiliated with Bryn Mawr Hospital, Paoli Hospital, Main Line Hospital Lankenau and Riddle Memorial Hospital.

When was this NPI record last updated?

The NPPES record for John Marks was last updated on October 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.