William Ogan, MD
NPI 1821581364 · Internal Medicine Physician · Brooklyn, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Ogan, MD is a Internal Medicine Physician provider in Brooklyn, NY (NPI 1821581364).
Provider details
- NPI number
- 1821581364
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 333708 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
542 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 442 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 61 | $118 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 39 | $176 |
Typical Medicare-allowed amounts for these services range $118–$176 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$64 across 1 record (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)
- 4800 E Johnson AveJonesboro, AR 72401-8413Phone: (870) 936-1000
- 330 Lewis StSan Diego, CA 92103-2108Phone: (316) 210-1717
- 200 W Arbor DrSan Diego, CA 92103-9000Phone: (800) 926-8273
- 8899 University Center Ln Ste 400San Diego, CA 92122-1010Phone: (316) 210-1717
- 490 Charlemagne DrLake St Louis, MO 63367-2431Phone: (316) 210-1717
Registry dates
- Enumerated
- 2018-06-10
- Last updated
- 2026-02-26
- Certified
- 2026-02-26
Frequently asked questions
- What is William Ogan's NPI number?
- William Ogan's National Provider Identifier (NPI) is 1821581364, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Ogan's specialty?
- William Ogan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Ogan located?
- William Ogan's practice location on file with NPPES is 4802 10th Ave, Brooklyn, NY 11219-2916.
- What is William Ogan's phone number?
- The practice phone number listed in the NPPES registry for William Ogan is (718) 283-9055.
- Does William Ogan accept Medicare?
- William Ogan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Ogan's NPI active?
- Yes — William Ogan's NPI (1821581364) is active in the NPPES registry as of the last update on 2026-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.