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

NPI Status: Active since October 28, 2005

Contact Information

133 ORNAC
CONCORD, MA
ZIP 01742
Phone: (978) 287-3162
Fax: (978) 287-3014

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  • Individual
  • Male
  • Years of Experience 34
  • Anesthesiology
  • Pain Medicine
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About GREGORY GARDNER

This page provides the complete NPI Profile along with additional information for Gregory Gardner, a provider established in Concord, Massachusetts with a medical specialization in Anesthesiology, focusing in pain medicine and more than 34 years of experience. He graduated from New York College Of Osteo Medicine Of New York Institute Of Technology in 1992. The healthcare provider is registered in the NPI registry with number 1801886916 assigned on October 2005. The practitioner's primary taxonomy code is 207LP2900X with license number 80837 (MA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1801886916
Provider Name
DR. GREGORY LEE GARDNER D.O.
Gender
Male
Entity Type
Individual
Location Address
133 ORNAC CONCORD, MA 01742
Location Phone
(978) 287-3162
Location Fax
(978) 287-3014
Mailing Address
2 LILAC LN CHELMSFORD, MA 01824
Medical School Name
NEW YORK COLLEGE OF OSTEO MEDICINE OF NEW YORK INSTITUTE OF TECHNOLOGY
Graduation Year
1992
Is Sole Proprietor?
No
Enumeration Date
10-28-2005
Last Update Date
09-11-2025
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Anesthesiology Pain Medicine

Taxonomy Code
207LP2900X
Type
Allopathic & Osteopathic Physicians
License No.
80837
License State
MA
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207L00000XAllopathic & Osteopathic Physicians

Anesthesiology

80837 (MA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
3137961MEDICAID (05)MA 

Medicare Participation & PECOS Enrollment Status

Gregory Gardner is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Gregory Gardner is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 8527002054

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20050615000981, I20250508002985

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Anesthesia for open or endoscopic total shoulder joint replacement

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.

This service was performed 15 times for 15 patients

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

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.

This service was performed 16 times for 14 patients

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

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.

This service was performed 29 times for 29 patients

Anesthesia for other procedure on upper abdomen

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.

This service was performed 36 times for 35 patients

Anesthesia for other procedure on urinary system through urethra

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.

This service was performed 16 times for 14 patients

Anesthesia for procedure for total knee joint replacement

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.

This service was performed 33 times for 33 patients

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

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.

This service was performed 11 times for 11 patients

Anesthesia for procedure on stomach for weight loss

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.

This service was performed 17 times for 17 patients

Anesthesia for total hip replacement

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.

This service was performed 20 times for 20 patients

Injection of anesthetic agent and/or steroid into arm nerve bundle

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.

This service was performed 47 times for 47 patients

Injection of anesthetic agent and/or steroid into thigh nerve

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.

This service was performed 32 times for 31 patients

Ultrasonic guidance for needle placement

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

This service was performed 82 times for 81 patients

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Gregory Gardner is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
EMERSON HOSPITAL -133 OLD ROAD TO 9 ACRE CORNER
W CONCORD, MA 01742
(978) 369-1400Acute Care Hospitals
SOUTHERN NH MEDICAL CENTER8 PROSPECT STREET
NASHUA, NH 03060
(603) 577-2000Acute Care Hospitals
CATHOLIC MEDICAL CENTER100 MCGREGOR STREET
MANCHESTER, NH 03102
(603) 668-3545Acute Care Hospitals

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1801886916, we treat the final digit (6) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
9
Unchanged
Pos 9
1
Doubled → 2
Check
6
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 8 → 16 → 7 6 → 12 → 3 1 → 2

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 8 + 0 + 1 + 1 + 6 + 8 + 1 + 2 + 9 + 2 + 24 = 64

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1801886916.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Emergency Medicine
133 ORNAC
CONCORD, MA 01742
Anesthesiology
133 ORNAC
CONCORD, MA 01742
Pharmacist
133 ORNAC
CONCORD, MA 01742
Pharmacist
133 ORNAC, DEPARTMENT OF PHARMACY
CONCORD, MA 01742
Nurse Practitioner (Acute Care)
133 ORNAC, EMERSON HOSPITAL CREDENTIALS
CONCORD, MA 01742
Internal Medicine
133 ORNAC
CONCORD, MA 01742
Internal Medicine
133 ORNAC
CONCORD, MA 01742
Pediatrics
133 ORNAC
CONCORD, MA 01742
Pediatrics
133 ORNAC, 133 ORNAC
CONCORD, MA 01742
Internal Medicine
133 ORNAC
CONCORD, MA 01742
Internal Medicine
133 ORNAC
CONCORD, MA 01742
Nurse Anesthetist, Certified Registered
133 ORNAC
CONCORD, MA 01742
Physician Assistant
133 ORNAC
CONCORD, MA 01742
Internal Medicine
133 ORNAC
CONCORD, MA 01742
Dietitian, Registered
133 ORNAC
CONCORD, MA 01742
Occupational Therapist
133 ORNAC, EMERSON HOSPITAL
CONCORD, MA 01742
Pharmacist
133 ORNAC
CONCORD, MA 01742
Pharmacist
133 ORNAC
CONCORD, MA 01742
Pharmacist
133 ORNAC, PHARMACY DEPT
CONCORD, MA 01742
Registered Nurse
133 ORNAC
CONCORD, MA 01742

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801886916, enumerated as an "individual" on October 28, 2005.

The provider is located at 133 ORNAC CONCORD, MA 01742 and the phone number is (978) 287-3162.

Anesthesiology with taxonomy code 207LP2900X and a focus in Pain Medicine.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.

Gregory Gardner is affiliated with: EMERSON HOSPITAL -, SOUTHERN NH MEDICAL CENTER and CATHOLIC MEDICAL CENTER.