DR. ALEXANDER MICHAEL HOLSTON M.D.
NPI 1629049358
Pediatrics - Neonatal-Perinatal Medicine in Rockville, MD

NPI Status: Active since January 31, 2006

Contact Information

9901 MEDICAL CENTER DR
ROCKVILLE, MD
ZIP 20850
Phone: (301) 873-9682

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  • Individual
  • Male
  • Pediatrics
  • Neonatal-Perinatal Medicine
  • PECOS Enrolled

About ALEXANDER HOLSTON

This page provides the complete NPI Profile along with additional information for Alexander Holston, a pediatrician established in Rockville, Maryland with a medical specialization in Pediatrics, focusing in neonatal-perinatal medicine . The healthcare provider is registered in the NPI registry with number 1629049358 assigned on January 2006. The practitioner's primary taxonomy code is 2080N0001X with license number D0097317 (MD). The provider is registered as an individual and his NPI record was last updated 2 years ago.

NPI
1629049358
Provider Name
DR. ALEXANDER MICHAEL HOLSTON M.D.
Gender
Male
Entity Type
Individual
Location Address
9901 MEDICAL CENTER DR ROCKVILLE, MD 20850
Location Phone
(301) 873-9682
Mailing Address
9901 MEDICAL CENTER DR ROCKVILLE, MD 20850
Mailing Phone
(301) 873-9682
Is Sole Proprietor?
No
Enumeration Date
01-31-2006
Last Update Date
11-15-2024
Code Navigator

A pediatrician like Alexander Holston is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, 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

Pediatrics Neonatal-Perinatal Medicine

Taxonomy Code
2080N0001X
Type
Allopathic & Osteopathic Physicians
License No.
D0097317
License State
MD
Taxonomy Description
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.

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)
12080N0001XAllopathic & Osteopathic Physicians

Pediatrics
Neonatal-Perinatal Medicine

0101248150 (VA)

Medicare Participation & PECOS Enrollment Status

Alexander Holston 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, Durable Medical Equipment (DME), a Home Health Agency (HHA) 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: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

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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 1629049358, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 0 + 4 + 1 + 8 + 3 + 1 + 0 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1629049358.

Other Providers at the Same Location


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

Internal Medicine (Critical Care Medicine)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Emergency Medicine
9901 MEDICAL CENTER DR, EMERGENCY DEPARTMENT
ROCKVILLE, MD 20850
Pediatrics
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Pediatrics
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Pediatrics
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Pediatrics
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Internal Medicine
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850
Emergency Medicine
9901 MEDICAL CENTER DR, DEPT OF EMERGENCY MEDICINE, MEP
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics
9901 MEDICAL CENTER DR, NICU
ROCKVILLE, MD 20850
Pediatrics (Neonatal-Perinatal Medicine)
9901 MEDICAL CENTER DR
ROCKVILLE, MD 20850

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629049358, enumerated as an "individual" on January 31, 2006.

The provider is located at 9901 MEDICAL CENTER DR ROCKVILLE, MD 20850 and the phone number is (301) 873-9682.

Pediatrics with taxonomy code 2080N0001X and a focus in Neonatal-Perinatal Medicine.