Nnamdi Gwacham, DO
NPI 1346604253 · Gynecologic Oncology Physician · Memphis, TN
Enrolled with Medicare as Practitioner - Gynecological Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nnamdi Gwacham, DO is a Gynecologic Oncology Physician provider in Memphis, TN (NPI 1346604253).
Provider details
- NPI number
- 1346604253
- Entity type
- Individual
- Primary specialty
- Gynecologic Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
12 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 12 | $213 |
Typical Medicare-allowed amounts for these services range $213–$213 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 22 | 18 |
| Gabapentin | 13 | — |
| Dexamethasone | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,160 across 29 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 11209 N Tatum Blvd Ste B200Phoenix, AZ 85028-3091Phone: (480) 530-4200Fax: (833) 465-1459
- 8138 Country Village DrCordova, TN 38016-2029Phone: (901) 725-8606Fax: (901) 759-9254
- 2100 Exeter RdGermantown, TN 38138-3966Phone: (901) 757-1350Fax: (901) 757-3496
- 6225 Humphreys BlvdMemphis, TN 38120-2373Phone: (901) 227-2727Fax: (901) 227-2477
- 6019 Walnut Grove RdMemphis, TN 38120-2113Phone: (901) 226-4910Fax: (901) 226-4774
Registry dates
- Enumerated
- 2016-04-06
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is Nnamdi Gwacham's NPI number?
- Nnamdi Gwacham's National Provider Identifier (NPI) is 1346604253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nnamdi Gwacham's specialty?
- Nnamdi Gwacham is listed in the NPPES registry with a primary specialty of Gynecologic Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nnamdi Gwacham located?
- Nnamdi Gwacham's practice location on file with NPPES is 80 Humphreys Center Dr Ste 202, Memphis, TN 38120-2361.
- What is Nnamdi Gwacham's phone number?
- The practice phone number listed in the NPPES registry for Nnamdi Gwacham is (901) 226-4280.
- Does Nnamdi Gwacham accept Medicare?
- Nnamdi Gwacham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nnamdi Gwacham's NPI active?
- Yes — Nnamdi Gwacham's NPI (1346604253) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.