ALEXANDRIA ROSE HAIRSTON MD
NPI 1114503174
Allergy & Immunology - Allergy in Boston, MA
NPI Status: Active since March 21, 2021
Contact Information
55 FRUIT ST
YAWKEY 4B
BOSTON, MA
ZIP 02114
Phone: (617) 724-9557
- Individual
- Female
- Allergy & Immunology
- Allergy
- PECOS Enrolled
About ALEXANDRIA HAIRSTON
This page provides the complete NPI Profile along with additional information for Alexandria Hairston, a provider established in Boston, Massachusetts with a medical specialization in Allergy & Immunology, focusing in allergy . The healthcare provider is registered in the NPI registry with number 1114503174 assigned on March 2021. The practitioner's primary taxonomy code is 207KA0200X with license number 1027125 (MA). The provider is registered as an individual and her NPI record was last updated May 2026.
- NPI
- 1114503174
- Provider Name
- ALEXANDRIA ROSE HAIRSTON MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 55 FRUIT ST YAWKEY 4B BOSTON, MA 02114
- Location Phone
- (617) 724-9557
- Mailing Address
- 55 FRUIT ST YAWKEY 4B BOSTON, MA 02114
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-21-2021
- Last Update Date
- 05-06-2026
- Code Navigator
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
Allergy & Immunology Allergy
- Taxonomy Code
- 207KA0200X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 1027125
- License State
- MA
- Taxonomy Description
- A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
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) |
|---|---|---|---|---|
| 1 | 207RA0201X | Allopathic & Osteopathic Physicians | Internal Medicine | 1027125 (MA) |
Medicare Participation & PECOS Enrollment Status
Alexandria Hairston 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
Provider Referred Orders for Durable Medical Equipment, Devices & Supplies
The following list reflects the services, supplies or durable medical equipment ordered by this provider to a DME supplier on behalf of patients. The information below is derived from Medicare claims data and reflects the BETOS category, HCPCS code information and the number times each service was submitted under the Medicare fee-for-service program.
Durable Medical Equipment
DME-Oxygen and Supplies (DC000N)
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing (HCPCS:E0431)
2 DME suppliers used 11 Medicare Claims 11 Services Paid
DME-Oxygen and Supplies (DC002N)
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate (HCPCS:E1390)
2 DME suppliers used 11 Medicare Claims 11 Services Paid
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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 1114503174, we treat the final digit (4) 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 46. The final step is to find the difference between that total and the next multiple of ten (50 - 46 = 4).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 46 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1114503174, enumerated as an "individual" on March 21, 2021.
The provider is located at 55 FRUIT ST YAWKEY 4B BOSTON, MA 02114 and the phone number is (617) 724-9557.
Allergy & Immunology with taxonomy code 207KA0200X and a focus in Allergy.
