Gail M. Herzig, MD
Gastroenterology Physician · Acton, MA
Gail M. Herzig, MD is a gastroenterology physician with a practice address in Acton, Massachusetts, and NPI 1689608440, issued on Jul 10, 2006. Check the license (Massachusetts 80319, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Gail M. Herzig
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 80319 MA
Self-reported in NPPES; status is on the state search - Practice location
- 45B Discovery Way, Acton, MA 01720
- Phone
- (978) 429-2010
- Enumerated
- Jul 10, 2006
- Record last updated
- Nov 18, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (978) 264-1935
- Medicare enrollment
- Enrolled (PECOS I20080214000122); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 45B Discovery Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauren Bleich, MD/MPHGastroenterology Physician1083882989
- Leah Creahan, MDGastroenterology Physician1629500921
- Raj Devarajan, MDGastroenterology Physician1508926668
- Christina Dunn, NPRegistered Nurse1184296485
- Jennifer Hunter, MPH, RD, LDNRegistered Dietitian1548849326
- Ann Joyce, MDGastroenterology Physician1447248042
Verify Gail M. Herzig in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 80319Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average gastroenterology physician in 2024
537 Medicare Part D claims for 235 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Ondansetron Hcl110 claims
- Omeprazole96 claims
- Sutab46 claims
- Pantoprazole Sodium43 claims
- Lansoprazole28 claims
- Famotidine27 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: $961.08
32 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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.
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
- Middlesex Gastroenterolgy PCActon, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gail M. Herzig among 686 gastroenterology physician records in Massachusetts
Gail M. Herzig, MD is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1988 · median 2004 among the 491 with a school on file
- Record last updated2010 · 66% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 gastroenterology physician records list a practice address in Acton
They are 8 of the 556 NPPES records with a practice address in Acton, and 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Acton → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Lauren Bleich, MD/MPHActon, MA 017201083882989
- Leah Creahan, MDActon, MA 017201629500921
- Raj Devarajan, MDActon, MA 017201508926668
- Ann Joyce, MDActon, MA 017201447248042
- Abhijeet Kashyap, MDActon, MA 017201710299615
- Peter Krims, M.D.Acton, MA 017201962400366
- Arpan Patel, MDActon, MA 017201033475983
- Lynne Ahn, MDFramingham, MA 017021144269143
Common questions
What is Gail M. Herzig, MD's NPI number?
Gail M. Herzig, MD's National Provider Identifier (NPI) is 1689608440, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gail M. Herzig, MD located?
The NPPES record lists a practice address at 45B Discovery Way, Acton, MA, 01720. Phone: (978) 429-2010. Providers update this record themselves, so call before visiting.
How can I verify Gail M. Herzig, MD's license?
NPPES lists Massachusetts license number 80319, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gail M. Herzig, MD prescribe under Medicare Part D?
In 2024, Gail M. Herzig, MD had 537 Medicare Part D claims for 235 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.
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.