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DR. MARK S. TANKER D.O.
NPI 1831137538
Internal Medicine - Gastroenterology in Philadelphia, PA

Active since June 03, 2006PECOS Enrolled
700 COTTMAN AVE, SUITE 201, PHILADELPHIA, PA 19111(215) 742-9900(215) 742-7051 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Mark S. Tanker D.o. NPPES

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

DR. MARK S. TANKER D.O. (NPI 1831137538) is an individual gastroenterology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (OS004028L) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1831137538
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. MARK S. TANKERCredential: D.O.
Location Address700 COTTMAN AVE, SUITE 201Philadelphia, PA 19111-3062
Mailing Address700 Cottman Ave, Suite 201Philadelphia, PA 19111-3062 · (215) 742-9900 · Fax (215) 742-7051
Phone(215) 742-9900
Fax(215) 742-7051
Sole ProprietorNo
Enumeration DateJune 3, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1831137538 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in PA · OS004028L
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
700 COTTMAN AVE, Philadelphia, PA 19111
Open in Google Maps ↗

Other Identifiers 3

Medicaid000859825/0002PA
Medicare ID-Type Unspecified77217
Medicare UPINB35110

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark S. Tanker D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

Einstein Practice Plan Inc
Same address
Nurse Anesthetist, Certified Registered
700 COTTMAN AVE STE 202
Philadelphia, PA 19111
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,205 clinicians in this Medicare group
NPI 1457047433 (215) 947-7000

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19111 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
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
95%337 patients4/55-star benchmark: 100%
Colorectal Cancer Screening
Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer
99%212 patients4/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%823 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
75%298 patients3/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%29 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
26%185 patients2/55-star benchmark: 100%
Photodocumentation of Cecal Intubation
The rate of screening and surveillance colonoscopies for which photodocumentation of landmarks of cecal intubation is performed to establish a complete examination
99%119 patients
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
100%286 patients5/55-star benchmark: 100%
Preventive Care and Screening: Unhealthy Alcohol Use: Screening & Brief Counseling
Percentage of patients aged 18 years and older who were screened for unhealthy alcohol use using a systematic screening method at least once within the last 24 months AND who received brief counseling if identified as an unhealthy alcohol user
90%179 patients4/55-star benchmark: 100%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
83%185 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
17%185 patients1/55-star benchmark: 79%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 19

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

JULIE HOLESH P.A.
Physician Assistant
700 COTTMAN AVE, SUITE 201
PHILADELPHIA, PA 19111
Philadelphia County (215) 742-9900
MR. FRANK GABRIEL COSENTINO CRNA
Nurse Anesthetist, Certified Registered
700 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 742-9400
GILBERT GROSSMAN MD
Internal Medicine (Cardiovascular Disease)
700 COTTMAN AVE, BLDG B, SUITE 101
PHILADELPHIA, PA 19111
Philadelphia County (215) 745-4100
MISTY SUE HARTH MHS, PA-C
Physician Assistant (Medical)
700 COTTMAN AVE, SUITE 201
PHILADELPHIA, PA 19111
Philadelphia County (215) 742-9900
MS. SARAH MARIE COMBS PHYSICIAN ASSISTANT
Physician Assistant (Medical)
700 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 742-9900
DR. DANIEL J. SHER M.D.
Internal Medicine (Gastroenterology)
700 COTTMAN AVE, SUITE 201
PHILADELPHIA, PA 19111
Philadelphia County (215) 742-9900
ABRAHAM JOHN
Nurse Practitioner (Family)
700 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 662-7366
NINA NGO PA-C
Physician Assistant (Medical)
700 COTTMAN AVE
PHILADELPHIA, PA 19111
Philadelphia County (215) 742-9900

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 Mark Tanker's NPI number?

The NPI number for Mark Tanker is 1831137538. It was assigned to this individual provider in the NPPES registry on June 3, 2006.

Where is Mark Tanker located?

Mark Tanker practices at 700 Cottman Ave Suite 201, Philadelphia, PA 19111. The listed phone number is (215) 742-9900.

What is Mark Tanker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Mark Tanker enrolled in Medicare?

Yes. Mark Tanker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Tanker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Tanker reassigns Medicare benefits to Einstein Practice Plan Inc (Philadelphia, 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 Mark Tanker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mark Tanker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.