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DR. NNEOMA OBIEJEMBA M.D
NPI 1346664653
Allergy & Immunology in Rockville, MD

Active since February 06, 2014PECOS EnrolledAccepts Medicare Assignment
12250 ROCKVILLE PIKE STE 290, ROCKVILLE, MD 20852(240) 669-8765(301) 235-1601 Get Directions Write a Review

NPPES record last updated: May 1, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 14, 2024, Aug 4, 2020, Jul 28, 2020 and 2 more (5 updates tracked since 2017).

About Dr. Nneoma Obiejemba M.d NPPES

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

DR. NNEOMA OBIEJEMBA M.D (NPI 1346664653) is an individual allergy & immunology provider in Rockville, Maryland, licensed in Maryland (D0083684) and active in the NPI registry since February 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1346664653
Entity TypeIndividualFemale
Primary Taxonomy207K00000X
Provider Legal NameDR. NNEOMA OBIEJEMBACredential: M.D
Location Address12250 ROCKVILLE PIKE STE 290Rockville, MD 20852-1600
Mailing Address8403 Colesville Rd Ste 1100Silver Spring, MD 20910-6346 · (301) 905-7762
Phone(240) 669-8765
Fax(301) 235-1601
Sole ProprietorNo
Medical School CMSOtherGraduated 2008
Enumeration DateFebruary 6, 2014
Last NPPES UpdateMay 1, 20255 updates tracked since enumeration
NPPES CertifiedMay 1, 2025
✔ NPI 1346664653 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in MD · D0083684
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.
Also ListedEmergency MedicineTaxonomy 207P00000X · License D0083684 (MD)
12250 ROCKVILLE PIKE STE 290, Rockville, MD 20852
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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. Nneoma Obiejemba M.d 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 ID2961774542
PECOS Enrollment IDI20200811002177
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

3

Medicare enrollment records show Nneoma Obiejemba reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Unic Allergy And Asthma Center LLC
Same address
Allergy & Immunology
12250 ROCKVILLE PIKE STE 290
Rockville, MD 20852
  • Reassigned Medicare billing, District of Columbia enrollment
NPI 1396424156 (240) 669-8765
Hospitalist Medicine Physicians Of Maryland PC
29 mi
Hospitalist
400 W SEVENTH ST
Frederick, MD 21701
  • Reassigned Medicare billing, Maryland enrollment
  • 270 clinicians in this Medicare group
NPI 1992945471 (615) 377-5658
Hospitalist Medicine Physicians Of Maryland-Frederick PC
29 mi
Internal Medicine
400 W 7TH ST
Frederick, MD 21701
  • Reassigned Medicare billing, Maryland enrollment
  • 91 clinicians in this Medicare group
NPI 1093322257 (615) 577-6366

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 11

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.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
984 services15 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.
482 services72 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.
162 services125 patients
Professional service for single injection of allergen 95115
A single allergen injection is a procedure where a small amount of a specific allergen is injected into your body. This is done to test your body's reaction to the allergen or to help your immune system become less sensitive to it, reducing allergic symptoms.
81 services14 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
70 services14 patients
Test to measure rate of airflow 94375
This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.
56 services52 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.

UNIC ALLERGY AND ASTHMA CENTER LLC
Allergy & Immunology
12250 ROCKVILLE PIKE STE 290
ROCKVILLE, MD 20852
Montgomery County (240) 669-8765

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 Nneoma Obiejemba's NPI number?

The NPI number for Nneoma Obiejemba is 1346664653. It was assigned to this individual provider in the NPPES registry on February 6, 2014.

Where is Nneoma Obiejemba located?

Nneoma Obiejemba practices at 12250 Rockville Pike Ste 290, Rockville, MD 20852. The listed phone number is (240) 669-8765.

What is Nneoma Obiejemba's specialty?

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

Is Nneoma Obiejemba enrolled in Medicare?

Yes. Nneoma Obiejemba 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 Nneoma Obiejemba's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nneoma Obiejemba reassigns Medicare benefits to 3 organizations: Unic Allergy And Asthma Center LLC (Rockville, MD), Hospitalist Medicine Physicians Of Maryland PC (Frederick, MD) and Hospitalist Medicine Physicians Of Maryland-Frederick PC (Frederick, MD). 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 Nneoma Obiejemba's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nneoma Obiejemba was last updated on May 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.