GEOFFREY M GRATWICK MD
NPI 1538185293
Internal Medicine - Rheumatology in Bangor, ME

NPI Status: Active since July 14, 2006

Contact Information

900 BROADWAY
BANGOR, ME
ZIP 04401
Phone: (207) 907-1187
Fax: (207) 907-1189

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  • Individual
  • Male
  • Internal Medicine
  • Rheumatology

About GEOFFREY GRATWICK

This page provides the complete NPI Profile along with additional information for Geoffrey Gratwick, an internist established in Bangor, Maine with a medical specialization in Internal Medicine, focusing in rheumatology . The healthcare provider is registered in the NPI registry with number 1538185293 assigned on July 2006. The practitioner's primary taxonomy code is 207RR0500X with license number MD8989 (ME). The provider is registered as an individual and his NPI record was last updated 12 years ago.

NPI
1538185293
Provider Name
GEOFFREY M GRATWICK MD
Gender
Male
Entity Type
Individual
Location Address
900 BROADWAY BANGOR, ME 04401
Location Phone
(207) 907-1187
Location Fax
(207) 907-1189
Mailing Address
900 BROADWAY BANGOR, ME 04401
Mailing Phone
(207) 907-1187
Mailing Fax
(207) 907-1189
Is Sole Proprietor?
No
Enumeration Date
07-14-2006
Last Update Date
07-03-2014
Code Navigator

An internist like Geoffrey Gratwick 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 Rheumatology

Taxonomy Code
207RR0500X
Type
Allopathic & Osteopathic Physicians
License No.
MD8989
License State
ME
Taxonomy Description
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

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
B86507MEDICARE UPIN (02)ME 
108050000MEDICAID (05)ME 
054357MEDICARE PIN (08)ME 

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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 1538185293, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
5
Unchanged
Pos 3
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
1
Doubled → 2
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
2
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
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 3 → 6 1 → 2 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 2 + 8 + 1 + 0 + 2 + 1 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1538185293.

Other Providers at the Same Location


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

Internal Medicine
900 BROADWAY, BLDG 3
BANGOR, ME 04401
Podiatrist
900 BROADWAY, BUILDING 1
BANGOR, ME 04401
Podiatrist (Primary Podiatric Medicine)
900 BROADWAY, BUILDING#1
BANGOR, ME 04401
Dietitian, Registered
900 BROADWAY, BLDG 1
BANGOR, ME 04401
Nurse Practitioner (Family)
900 BROADWAY
BANGOR, ME 04401
Physician Assistant
900 BROADWAY
BANGOR, ME 04401
Internal Medicine (Rheumatology)
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner (Adult Health)
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner
900 BROADWAY
BANGOR, ME 04401
Dietitian, Registered
900 BROADWAY, BLDG 3
BANGOR, ME 04401
Nurse Practitioner (Occupational Health)
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner (Family)
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner (Adult Health)
900 BROADWAY
BANGOR, ME 04401
Internal Medicine
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner (Family)
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner (Family)
900 BROADWAY
BANGOR, ME 04401
Internal Medicine
900 BROADWAY
BANGOR, ME 04401
Nurse Practitioner (Family)
900 BROADWAY
BANGOR, ME 04401
Clinic/Center (Medical Specialty)
900 BROADWAY
BANGOR, ME 04401
Family Medicine
900 BROADWAY
BANGOR, ME 04401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538185293, enumerated as an "individual" on July 14, 2006.

The provider is located at 900 BROADWAY BANGOR, ME 04401 and the phone number is (207) 907-1187.

Internal Medicine with taxonomy code 207RR0500X and a focus in Rheumatology.

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