DR. MARK ARENAS PH.D.
NPI 1508964271
Psychologist - Counseling in Baltimore, MD

NPI Status: Active since September 20, 2006

Contact Information

10 N GREENE ST
MH-116
BALTIMORE, MD
ZIP 21201
Phone: (410) 605-7000

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  • Individual
  • Male
  • Psychologist
  • Counseling
  • PECOS Enrolled

About MARK ARENAS

This page provides the complete NPI Profile along with additional information for Mark Arenas, a provider established in Baltimore, Maryland with a medical specialization in Psychologist, focusing in counseling . The healthcare provider is registered in the NPI registry with number 1508964271 assigned on September 2006. The practitioner's primary taxonomy code is 103TC1900X with license number 02229 (MD). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1508964271
Provider Name
DR. MARK ARENAS PH.D.
Gender
Male
Entity Type
Individual
Location Address
10 N GREENE ST MH-116 BALTIMORE, MD 21201
Location Phone
(410) 605-7000
Mailing Address
10 N GREENE ST BT/MH/116 BALTIMORE, MD 21201
Mailing Phone
(410) 605-7000
Is Sole Proprietor?
Yes
Enumeration Date
09-20-2006
Last Update Date
07-08-2007
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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

Psychologist Counseling

Taxonomy Code
103TC1900X
Type
Behavioral Health & Social Service Providers
License No.
02229
License State
MD
Taxonomy Description
A psychologist who specializes in general practice and health service. It focuses on how people function both personally and in their relationships at all ages. Counseling psychology addresses the emotional, social, work, school and physical health concerns people may have at different stages in their lives, focusing on typical life stresses and more severe issues with which people may struggle as individuals and as a part of families, groups and organizations. Counseling psychologists help people with physical, emotional and mental health issues improve their sense of well-being, alleviate feelings of distress and resolve crises. They also provide assessment, diagnosis, and treatment of more severe psychological symptoms.

Medicare Participation & PECOS Enrollment Status

Mark Arenas 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 and Durable Medical Equipment (DME).

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

  • 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): No

  • Eligible to Order or Refer Power Mobility Devices: 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 1508964271, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
0
Doubled → 0
Pos 4
8
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
1
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 9 → 18 → 9 4 → 8 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 0 + 8 + 1 + 8 + 6 + 8 + 2 + 1 + 4 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1508964271.

Other Providers at the Same Location


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

Nurse Anesthetist, Certified Registered
10 N GREENE ST
BALTIMORE, MD 21201
Nurse Anesthetist, Certified Registered
10 N GREENE ST, BT-115
BALTIMORE, MD 21201
Nurse Practitioner (Family)
10 N GREENE ST
BALTIMORE, MD 21201
Surgery
10 N GREENE ST
BALTIMORE, MD 21201
Family Medicine
10 N GREENE ST
BALTIMORE, MD 21201
Social Worker (Clinical)
10 N GREENE ST
BALTIMORE, MD 21201
Internal Medicine (Geriatric Medicine)
10 N GREENE ST, BALTIMORE VA MEDICAL CENTER
BALTIMORE, MD 21201
Internal Medicine (Geriatric Medicine)
10 N GREENE ST, GRECC (BT/18/GR)
BALTIMORE, MD 21201
Psychologist (Clinical)
10 N GREENE ST, BALTIMORE VAMC BT-116-MH
BALTIMORE, MD 21201
Urology
10 N GREENE ST
BALTIMORE, MD 21201
Optometrist
10 N GREENE ST, RM 2D-168
BALTIMORE, MD 21201
Radiology (Diagnostic Radiology)
10 N GREENE ST
BALTIMORE, MD 21201
Specialist
10 N GREENE ST, BALTIMORE VA DEPARTMENT OF PATHOLOGY 4D-140
BALTIMORE, MD 21201
Internal Medicine
10 N GREENE ST
BALTIMORE, MD 21201
Psychiatry & Neurology (Psychiatry)
10 N GREENE ST, 116A
BALTIMORE, MD 21201
Clinical Neuropsychologist
10 N GREENE ST, BT 116 MH
BALTIMORE, MD 21201
Nurse Practitioner (Adult Health)
10 N GREENE ST
BALTIMORE, MD 21201
Dentist (General Practice)
10 N GREENE ST, VA DENTAL CLINIC
BALTIMORE, MD 21201
Physician Assistant
10 N GREENE ST
BALTIMORE, MD 21201
Psychologist (Clinical)
10 N GREENE ST
BALTIMORE, MD 21201

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1508964271, enumerated as an "individual" on September 20, 2006.

The provider is located at 10 N GREENE ST MH-116 BALTIMORE, MD 21201 and the phone number is (410) 605-7000.

Psychologist with taxonomy code 103TC1900X and a focus in Counseling.