DR. MARK ALLAN WALKER M.D.
NPI 1083716823
Internal Medicine - Endocrinology, Diabetes & Metabolism in Halethorpe, MD

NPI Status: Active since September 02, 2006

Contact Information

1701 TWIN SPRINGS RD
KAISER PERMANENTE SOUTH BALTIMORE COUNTY MEDICAL CENTER
HALETHORPE, MD
ZIP 21227
Phone: (410) 737-5540
Fax: (410) 737-5531

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  • Individual
  • Male
  • Internal Medicine
  • Endocrinology, Diabetes & Metabolism
  • PECOS Enrolled

About MARK WALKER

This page provides the complete NPI Profile along with additional information for Mark Walker, an internist established in Halethorpe, Maryland with a medical specialization in Internal Medicine, focusing in endocrinology, diabetes & metabolism . The healthcare provider is registered in the NPI registry with number 1083716823 assigned on September 2006. The practitioner's primary taxonomy code is 207RE0101X with license number D0037239 (MD). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1083716823
Provider Name
DR. MARK ALLAN WALKER M.D.
Gender
Male
Entity Type
Individual
Location Address
1701 TWIN SPRINGS RD KAISER PERMANENTE SOUTH BALTIMORE COUNTY MEDICAL CENTER HALETHORPE, MD 21227
Location Phone
(410) 737-5540
Location Fax
(410) 737-5531
Mailing Address
2101 E JEFFERSON ST KAISER PERMANENTE MEDICARE ENROLLMENT ROCKVILLE, MD 20852
Mailing Phone
(301) 816-2424
Is Sole Proprietor?
No
Enumeration Date
09-02-2006
Last Update Date
10-29-2013
Code Navigator

An internist like Mark Walker 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 Endocrinology, Diabetes & Metabolism

Taxonomy Code
207RE0101X
Type
Allopathic & Osteopathic Physicians
License No.
D0037239
License State
MD
Taxonomy Description
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

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)
1207RE0101XAllopathic & Osteopathic Physicians

Internal Medicine
Endocrinology, Diabetes & Metabolism

0101250822 (VA)
2207RE0101XAllopathic & Osteopathic Physicians

Internal Medicine
Endocrinology, Diabetes & Metabolism

MD039279 (DC)

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
F22495MEDICARE UPIN (02) 

Medicare Participation & PECOS Enrollment Status

Mark Walker 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: Durable Medical Equipment (DME) 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

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: No

  • 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: Yes

Physician Visit Costs

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 21227 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $139.05
  • Minimum New Patient Price $60.73
  • Maximum New Patient Price $183.44
  • Average New Patient Copayment $34.76
  • Minimum New Patient Copayment $15.18
  • Maximum New Patient Copayment $45.86

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $106.59
  • Minimum Established Patient Price $19.6
  • Maximum Established Patient Price $149.17
  • Average Established Patient Copayment $26.64
  • Minimum Established Patient Copayment $4.9
  • Maximum Established Patient Copayment $37.29

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

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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 1083716823, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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
0
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
1
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
2
Doubled → 4
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 8 → 16 → 7 7 → 14 → 5 6 → 12 → 3 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 6 + 3 + 1 + 4 + 1 + 1 + 2 + 8 + 4 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1083716823.

Other Providers at the Same Location


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

Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pediatrics
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Point of Service
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Podiatrist (Foot & Ankle Surgery)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Specialist/Technologist, Other (Surgical Assistant)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist (Ambulatory Care)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Specialist/Technologist, Other (Surgical Assistant)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Internal Medicine
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227
Surgery
1701 TWIN SPRINGS RD
HALETHORPE, MD 21227

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1083716823, enumerated as an "individual" on September 02, 2006.

The provider is located at 1701 TWIN SPRINGS RD KAISER PERMANENTE SOUTH BALTIMORE COUNTY MEDICAL CENTER HALETHORPE, MD 21227 and the phone number is (410) 737-5540.

Internal Medicine with taxonomy code 207RE0101X and a focus in Endocrinology, Diabetes & Metabolism.

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