GREENWICH MEDICAL GROUP
NPI 1881781029
Internal Medicine in Greenwich, CT
NPI Status: Active since October 09, 2006
Contact Information
75 HOLLY HILL LN
GREENWICH, CT
ZIP 06830
Phone: (203) 869-6960
Fax: (203) 869-5103
- Organization
- Internal Medicine
About GREENWICH MEDICAL GROUP
This page provides the complete NPI Profile along with additional information for Greenwich Medical Group, an internist established in Greenwich, Connecticut operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1881781029 assigned on October 2006. The practitioner's primary taxonomy code is 207R00000X with license number BV5838959 (CT). The provider is registered as an organization and their NPI record was last updated one year ago. Greenwich Medical Group operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Gail M Fennell M.d. (Managing Partner)
- NPI
- 1881781029
- Provider Name
- GREENWICH MEDICAL GROUP
- Entity Type
- Organization
- Location Address
- 75 HOLLY HILL LN GREENWICH, CT 06830
- Location Phone
- (203) 869-6960
- Location Fax
- (203) 869-5103
- Mailing Address
- 75 HOLLY HILL LN GREENWICH, CT 06830
- Mailing Phone
- (203) 869-6960
- Mailing Fax
- (203) 869-5103
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 10-09-2006
- Last Update Date
- 09-11-2025
- Code Navigator
An internist like Greenwich Medical Group is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
Location Map
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
Internal Medicine
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- BV5838959
- License State
- CT
- Taxonomy Description
- A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
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) |
|---|---|---|---|---|
| 1 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | AS8735308 (CT) |
| 2 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | BL9582493 (CT) |
| 3 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | AA2470348 (CT) |
| 4 | 207R00000X | Allopathic & Osteopathic Physicians | Internal Medicine | BF4323503 (CT) |
| 5 | 207RC0000X | Allopathic & Osteopathic Physicians | Internal Medicine | BN3275369 (CT) |
| 6 | 207RP1001X | Allopathic & Osteopathic Physicians | Internal Medicine | AM6000715 (CT) |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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 |
|---|---|---|---|
| 00439394R | MEDICAID (05) | CT |
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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 1881781029, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
GREENWICH, CT 06830
GREENWICH, CT 06830
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1881781029, enumerated as an "organization" on October 09, 2006.
The provider is located at 75 HOLLY HILL LN GREENWICH, CT 06830 and the phone number is (203) 869-6960.
Internal Medicine with taxonomy code 207R00000X.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
