DR. GREGORY LEE GARDNER D.O.
NPI 1801886916
Anesthesiology - Pain Medicine in Concord, MA

Q: What is Gregory Gardner's NPI number?

The NPI number for Gregory Gardner is 1801886916. It was assigned to this individual provider in the NPPES registry on October 28, 2005.

Q: What is Gregory Gardner's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Gardner was last updated on September 11, 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.

Active since October 28, 2005PECOS EnrolledAccepts Medicare Assignment

133 ORNAC, CONCORD, MA 01742(978) 287-3162(978) 287-3014 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Gregory Lee Gardner D.o. NPPES

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

DR. GREGORY LEE GARDNER D.O. (NPI 1801886916) is an individual pain medicine provider in Concord, Massachusetts, licensed in Massachusetts (80837) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Emerson Hospital -, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (1992).

NPPES Registry Identity

NPI1801886916

Entity TypeIndividualMale

Primary Taxonomy207LP2900X

Provider Legal NameDR. GREGORY LEE GARDNERCredential: D.O.

Location Address133 ORNACConcord, MA 01742-4159

Mailing Address2 Lilac LnChelmsford, MA 01824-3427

Phone(978) 287-3162

Fax(978) 287-3014

Sole ProprietorNo

Medical School CMSNew York College Of Osteo Medicine Of New York Institute Of TechnologyGraduated 1992

Enumeration DateOctober 28, 2005

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1801886916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LP2900X

License✔ Licensed in MA · 80837

Definition

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

Also ListedAnesthesiologyTaxonomy 207L00000X · License 80837 (MA)

Other Identifiers 1

Medicaid3137961MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Lee Gardner D.o. 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 ID8527002054

PECOS Enrollment IDI20050615000981, I20250508002985

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 Reassignments

Medicare enrollment records show Gregory Gardner reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Emerson Practice Associates II, Inc.

Cardiovascular Disease

133 OLD ROAD TO 9 ACRE COR
Concord, MA 01742

Reassigned Medicare billing, Massachusetts enrollment
72 clinicians in this Medicare group

NPI 1427383645 (978) 287-3234

Granite State Anesthesia Partners, LLC

Anesthesiology

100 MCGREGOR ST
Manchester, NH 03102

Reassigned Medicare billing, New Hampshire enrollment
57 clinicians in this Medicare group

NPI 1821815010 (800) 437-9666

Hospitalist Medicine Physicians Of New York - Patchogue PC

Anesthesiology

101 HOSPITAL RD
Patchogue, NY 11772

Reassigned Medicare billing, New Hampshire enrollment
145 clinicians in this Medicare group

NPI 1366920993 (631) 654-7100

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

Areas of Expertise CMS Part B claims 13

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.

Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

57 services55 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

38 services38 patients

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

33 services32 patients

Anesthesia for procedure for total knee joint replacement 01402

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

30 services29 patients

Anesthesia for open or endoscopic total shoulder joint replacement 01638

Anesthesia for total shoulder joint replacement, either open or endoscopic, involves using medications to block pain during surgery. It can be general (you're asleep) or regional (only the area being operated on is numbed). This ensures comfort and stillness, facilitating a successful procedure.

26 services26 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

25 services22 patients

Anesthesia for other procedure on top of arm bone and shoulder joint 01630

Anesthesia for a procedure on the arm bone or shoulder joint involves using medication to numb the area or make you unconscious during surgery. This ensures you feel no pain during the procedure. It's a common and safe practice in medical surgeries.

24 services24 patients

Anesthesia for other procedure on upper abdomen 00790

Anesthesia for an upper abdomen procedure involves using medications to help you feel no pain during the operation. It can be general, where you're unconscious, or regional, where just the abdomen area is numbed. It ensures comfort and stillness, aiding a successful procedure.

20 services20 patients

Anesthesia for other procedure on skin of arms, legs, and front body 00400

Anesthesia for procedures on the skin of your arms, legs, and front body is a service that numbs the area being treated. This ensures you don't feel pain during procedures like biopsies, stitches, or minor surgeries. It's administered through a small injection or a topical cream.

12 services12 patients

Anesthesia for other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

12 services12 patients

Anesthesia for other procedure on urinary system through urethra 00910

Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.

12 services11 patients

Anesthesia for procedure on stomach for weight loss 00797

Anesthesia for a weight loss procedure on the stomach ensures you're comfortable and pain-free during surgery. It can be general (you're asleep) or regional (you're awake but numb). It's administered by a specialist who monitors your vital signs throughout the procedure.

11 services11 patients

Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810

Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Emerson Hospital -

Acute Care Hospitals · W Concord, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220084

Location133 Old Road To 9 Acre CornerW Concord, MA 01742 · Middlesex County

Emergency services Birthing friendly

Southern Nh Medical Center

Acute Care Hospitals · Nashua, NH

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number300020

Location8 Prospect StreetNashua, NH 03060 · Hillsborough County

Emergency services Birthing friendly

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.

MR. PAUL E GRIFFIN R.PH.

Pharmacist

133 ORNAC, EMERSON HOSPITAL
CONCORD, MA 01742

Middlesex County (978) 287-3769

ROSEMARIE DOLAN-LEE CFNP

Nurse Practitioner (Family)

133 ORNAC, EMERSON HOSPITAL NORTH 5
CONCORD, MA 01742

Middlesex County (978) 369-1400

DR. PETER SCOTT BENJAMIN M.D.

Internal Medicine

133 ORNAC
CONCORD, MA 01742

Middlesex County (978) 287-3627

PAIGE LAUREN MALLORY PHARMD

Pharmacist

133 ORNAC
CONCORD, MA 01742

Middlesex County (978) 287-3770

GINA ELISABETTA OUELLETTE

Emergency Medicine (Emergency Medical Services)

133 ORNAC
CONCORD, MA 01742

Middlesex County (978) 369-1400

PETER STERN

Pharmacist

133 ORNAC
CONCORD, MA 01742

Middlesex County (978) 287-3770

DR. HENRY WINCHESTER VAILLANT MD

Internal Medicine

133 ORNAC
CONCORD, MA 01742

Middlesex County (978) 369-1400

MRS. KATHRYN R SMALL NP

Nurse Practitioner (Acute Care)

133 ORNAC, EMERSON HOSPITAL CREDENTIALS
CONCORD, MA 01742

Middlesex County (978) 287-3167

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 Gregory Gardner's NPI number?

The NPI number for Gregory Gardner is 1801886916. It was assigned to this individual provider in the NPPES registry on October 28, 2005.

Where is Gregory Gardner located?

Gregory Gardner practices at 133 Ornac, Concord, MA 01742. The listed phone number is (978) 287-3162.

What is Gregory Gardner's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Gregory Gardner enrolled in Medicare?

Yes. Gregory Gardner 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.

Which organizations bill Medicare for Gregory Gardner's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Gardner reassigns Medicare benefits to 3 organizations: Emerson Practice Associates II, Inc. (Concord, MA), Granite State Anesthesia Partners, LLC (Manchester, NH) and Hospitalist Medicine Physicians Of New York - Patchogue PC (Patchogue, NY). Each 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 Gregory Gardner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Gardner accept?

Health plans from WellSense Health Plan list Gregory Gardner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Gregory Gardner affiliated with any hospitals?

According to CMS data, Gregory Gardner is affiliated with Emerson Hospital - and Southern Nh Medical Center.

When was this NPI record last updated?

The NPPES record for Gregory Gardner was last updated on September 11, 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.