NPPES file of Aug 9, 2026

Jennifer Hsieh, M.D.

Gastroenterology Physician · Ridgewood, NJ

Jennifer Hsieh, M.D. is a gastroenterology physician with a practice address in Ridgewood, New Jersey, and NPI 1629357835, issued on Aug 5, 2011. Check the license (New Jersey 25MA09913500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629357835
Name
Jennifer Hsieh
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
25MA09913500 NJ
Self-reported in NPPES; status is on the state search
Practice location
140 Chestnut St, Ridgewood, NJ 07450
Phone
(212) 444-2600
Enumerated
Aug 5, 2011
Record last updated
Aug 17, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160825000339); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest gastroenterology physician records → All 735 in New Jersey → Look up another NPI →

Also registered at 140 Chestnut St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Douglas Avella, M.D.Pediatric Orthopaedic Surgery Physician1437200672
  2. Jay Babich, M.D.Gastroenterology Physician1275862732
  3. John Co, MDCardiovascular Disease Physician1588620199
  4. Zvi Fischer, M.D.Gastroenterology Physician1437108339
  5. Cristina FontanaMental Health Counselor1821524273
  6. Michael Rahmin, M.D.Gastroenterology Physician1902856313

Verify Jennifer Hsieh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA09913500    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

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53% fewer Medicare Part D claims than the average gastroenterology physician in 2024

383 Medicare Part D claims for 138 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Jennifer Hsieh383
  2. Specialty average811

Most prescribed

  1. Omeprazole142 claims
  2. Gavilyte-G35 claims
  3. Pantoprazole Sodium29 claims
  4. Sutab26 claims
  5. Dicyclomine Hcl25 claims
  6. Famotidine13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $469.18

31 payments; by number, the most common kind was food and beverage; the largest payer was Salix Pharmaceuticals, a division of Bausch Health US, LLC. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Hsieh$469.18
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Barnabas Health Medical Group PCBayonne, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jennifer Hsieh among 735 gastroenterology physician records in New Jersey

Jennifer Hsieh, M.D. is one of 735 gastroenterology physician records with a practice address in New Jersey. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 75% of them.

  • NPI issued2011 · 75% of these records are older, 22% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated2009 · median 2000 among the 564 with a school on file
  • Record last updated2016 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in New Jersey

There are 735 gastroenterology physician records in New Jersey.

All 735 in New Jersey → Every provider in Ridgewood → Gastroenterology Physician nationwide →

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Jay Babich, M.D.Ridgewood, NJ 074501275862732
  2. Jeffrey Danzig, M.D.Ridgewood, NJ 074501689653909
  3. Zvi Fischer, M.D.Ridgewood, NJ 074501437108339
  4. Homayoon Hatefi, MDRidgewood, NJ 074501285695015
  5. Anna Korkis, MDRidgewood, NJ 074501912014887
  6. Haleh Pazwash, M.D.Ridgewood, NJ 074501902856099
  7. Michael Rahmin, M.D.Ridgewood, NJ 074501902856313
  8. Mitchell Rubinoff, M.D.Ridgewood, NJ 074501942250345

Common questions

What is Jennifer Hsieh, M.D.'s NPI number?

Jennifer Hsieh, M.D.'s National Provider Identifier (NPI) is 1629357835, issued on Aug 5, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Hsieh, M.D. located?

The NPPES record lists a practice address at 140 Chestnut St, Ridgewood, NJ, 07450. Phone: (212) 444-2600. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Hsieh, M.D.'s license?

NPPES lists New Jersey license number 25MA09913500, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jennifer Hsieh, M.D. prescribe under Medicare Part D?

In 2024, Jennifer Hsieh, M.D. had 383 Medicare Part D claims for 138 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.