DR. CHARLES FOLLIS HAMILL DO
NPI 1770166605
Psychiatry & Neurology - Psychiatry in Belmar, NJ

NPI Status: Active since April 29, 2021

Contact Information

1516 STATE ROUTE 138
BELMAR, NJ
ZIP 07719
Phone: (732) 233-9249

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Psychiatry
  • Opted-Out Medicare

About CHARLES HAMILL

This page provides the complete NPI Profile along with additional information for Charles Hamill, a provider established in Belmar, New Jersey with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1770166605 assigned on April 2021. The practitioner's primary taxonomy code is 2084P0800X with license number 25MB12159500 (NJ). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1770166605
Provider Name
DR. CHARLES FOLLIS HAMILL DO
Gender
Male
Entity Type
Individual
Location Address
1516 STATE ROUTE 138 BELMAR, NJ 07719
Location Phone
(732) 233-9249
Mailing Address
2163 8TH AVE SEA GIRT, NJ 08750
Mailing Phone
(732) 406-0404
Is Sole Proprietor?
No
Enumeration Date
04-29-2021
Last Update Date
07-24-2025
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A psychiatrist like Charles Hamill are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Charles Hamill opted out of Medicare effective on 10-04-2025 until 10-04-2027. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

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

Psychiatry & Neurology Psychiatry

Taxonomy Code
2084P0800X
Type
Allopathic & Osteopathic Physicians
License No.
25MB12159500
License State
NJ
Taxonomy Description
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Medicare Participation & PECOS Enrollment Status

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.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 10-04-2025

  • Opt-Out End Date: 10-04-2027

  • Eligible to Order and Refer? No

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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 1770166605, we treat the final digit (5) 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).

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
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
1
Doubled → 2
Pos 6
6
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
0
Doubled → 0
Check
5
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 7 → 14 → 5 1 → 2 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 2 + 6 + 1 + 2 + 6 + 0 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1770166605.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Dentist
1516 STATE ROUTE 138
WALL, NJ 07719
Dentist (General Practice)
1516 STATE ROUTE 138
WALL, NJ 07719

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770166605, enumerated as an "individual" on April 29, 2021.

The provider is located at 1516 STATE ROUTE 138 BELMAR, NJ 07719 and the phone number is (732) 233-9249.

Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.