1. Home
  2. Directory
  3. Pennsylvania
  4. Malvern
  5. Internal Medicine
  6. NPI Profile

JANSON JACOB MD
NPI 1629638614
Internal Medicine - Gastroenterology in Malvern, PA

Active since June 20, 2019PECOS EnrolledAccepts Medicare Assignment
325 CENTRAL AVE, MALVERN, PA 19355(610) 644-6755 Get Directions Write a Review

NPPES record last updated: June 12, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 12, 2025, Jun 8, 2022, Jun 20, 2019 (3 updates tracked since 2019).

About Janson Jacob Md NPPES

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

JANSON JACOB MD (NPI 1629638614) is an individual gastroenterology provider in Malvern, Pennsylvania, licensed in Pennsylvania (MT225674) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS, is affiliated with Bryn Mawr Hospital, and is a graduate of Pennsylvania State University College Of Medicine (2019).

NPPES Registry Identity

NPI1629638614
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameJANSON JACOBCredential: MD
Location Address325 CENTRAL AVEMalvern, PA 19355-3265
Mailing Address707 Eagleview BlvdExton, PA 19341-1159 · (610) 644-6755
Phone(610) 644-6755
Sole ProprietorNo
Medical School CMSPennsylvania State University College Of MedicineGraduated 2019
Enumeration DateJune 20, 2019
Last NPPES UpdateJune 12, 20253 updates tracked since enumeration
NPPES CertifiedJune 12, 2025
✔ NPI 1629638614 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in PA · MT225674
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 4351044320 (MI)
325 CENTRAL AVE, Malvern, PA 19355
Open in Google Maps ↗

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

Janson Jacob 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 ID6204162233
PECOS Enrollment IDI20241214000514
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.

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 19355 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.

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.

LISA BETH MEEDER CRNA
Nurse Anesthetist, Certified Registered
325 CENTRAL AVE, SUITE 200
MALVERN, PA 19355
Chester County (610) 644-6755
PAOLI PSYCHIATRIC ASSOCIATES
Psychiatry & Neurology (Psychiatry)
325 CENTRAL AVE, SUITE 102
MALVERN, PA 19355
Chester County (610) 296-0142
MICHAEL B WOLFSON M.D.
Internal Medicine (Gastroenterology)
325 CENTRAL AVE, 2ND FLOOR
MALVERN, PA 19355
Chester County (610) 644-6755
RUPAL KOTHARI D.O.
Internal Medicine (Gastroenterology)
325 CENTRAL AVE, 2ND FLOOR
MALVERN, PA 19355
Chester County (610) 644-6755
MAURA MACDONALD BARR DO
Internal Medicine (Gastroenterology)
325 CENTRAL AVE, SUITE 200
MALVERN, PA 19355
Chester County (610) 644-6755
DR. RICHARD FREDERICK KOUP D.M.D.
Dentist (General Practice)
325 CENTRAL AVE, SUITE 101
MALVERN, PA 19355
Chester County (610) 644-0408
ANIL K SHARMA MD
Internal Medicine (Gastroenterology)
325 CENTRAL AVE, 2ND FLOOR
MALVERN, PA 19355
Chester County (610) 644-6755
TAKAHIRO IGNACIO NAKAMURA MD
Internal Medicine (Gastroenterology)
325 CENTRAL AVE
MALVERN, PA 19355
Chester County (610) 234-7900

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 Janson Jacob's NPI number?

The NPI number for Janson Jacob is 1629638614. It was assigned to this individual provider in the NPPES registry on June 20, 2019.

Where is Janson Jacob located?

Janson Jacob practices at 325 Central Ave, Malvern, PA 19355. The listed phone number is (610) 644-6755.

What is Janson Jacob's specialty?

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

Is Janson Jacob enrolled in Medicare?

Yes. Janson Jacob 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 Janson Jacob affiliated with any hospitals?

According to CMS data, Janson Jacob 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 Janson Jacob was last updated on June 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.