Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. PRASAD M NATARAJ MD
NPI 1437222874
Allergy & Immunology in Frederick, MD

Active since November 15, 2006PECOS Enrolled
112 THOMAS JOHNSON DR STE 210, FREDERICK, MD 21702(240) 817-0810(240) 817-0812 Get Directions Write a Review

NPPES record last updated: October 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Prasad M Nataraj Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. PRASAD M NATARAJ MD (NPI 1437222874) is an individual allergy & immunology provider in Frederick, Maryland, licensed in Maryland (D0046941) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1984).

NPPES Registry Identity

NPI1437222874
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameDR. PRASAD M NATARAJCredential: MD
Location Address112 THOMAS JOHNSON DR STE 210Frederick, MD 21702-4970
Mailing Address112 Thomas Johnson Dr Ste 210Frederick, MD 21702-4970 · (240) 817-0810 · Fax (240) 817-0812
Fax(240) 817-0812
Sole ProprietorYes
Medical School CMSOtherGraduated 1984
Enumeration DateNovember 15, 2006
Last NPPES UpdateOctober 20, 2026
NPPES CertifiedOctober 20, 2026
✔ NPI 1437222874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in MD · D0046941
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
112 THOMAS JOHNSON DR STE 210, Frederick, MD 21702

Other Identifiers 1

Medicaid235991000MD

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Prasad M Nataraj Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1951382134
PECOS Enrollment IDI20040525000620, I20100810000367, I20171005002437
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Prasad Nataraj reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Allergy & Immunology
4660 KENMORE AVE STE 516
Alexandria, VA 22304
  • Reassigned Medicare billing, District of Columbia and Maryland enrollments
  • 5 clinicians in this Medicare group
Allergy & Immunology
5507 S CONGRESS AVE
Atlantis, FL 33462
  • Reassigned Medicare billing, Florida enrollment
  • 5 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
1,200 services24 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
85 services46 patients
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211
This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.
27 services21 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
24 services16 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
21 services11 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
17 services17 patients

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Allergy & Immunology
112 THOMAS JOHNSON DR STE 210
FREDERICK, MD 21702

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Prasad Nataraj's NPI number?

The NPI number for Prasad Nataraj is 1437222874. It was assigned to this individual provider in the NPPES registry on November 15, 2006.

Where is Prasad Nataraj located?

Prasad Nataraj practices at 112 Thomas Johnson Dr Ste 210, Frederick, MD 21702. The listed phone number is (240) 817-0810.

What is Prasad Nataraj's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Prasad Nataraj enrolled in Medicare?

Yes. Prasad Nataraj is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Prasad Nataraj's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Prasad Nataraj reassigns Medicare benefits to 2 organizations: Dmv Allergy And Asthma Center LLC (Alexandria, VA) and Florida Allergy And Asthma Associates, PA (Atlantis, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Prasad Nataraj's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Prasad Nataraj accept?

Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Ambetter of Alabama, AvMed and Florida Blue (BlueCross BlueShield FL) and 2 other insurers list Prasad Nataraj as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Prasad Nataraj was last updated on October 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.