Doctor profile · Federal record
Dr. Nathaniel Fleischner, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Royal Palm Beach, FL
- NPI 1083880926
- Accepts Medicare
- 21 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
11700 Okeechobee Blvd
Royal Palm Beach, FL 334118721
(561) 790-0789
fax (855) 753-3317
Credentials & registration
- NPI registered
- April 2008 — 18 yrs on file
- Profile last updated
- June 23, 2025
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Florida #ME105685
- Medicaid
- FL #001631600
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083880926. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
478
Distinct HCPCS
10
Medicare allowed
$42,557
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 120 | 72 | $92 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 101 | 56 | $130 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 62 | 17 | $76 | |
36415 |
Insertion of needle into vein for collection of blood sample | 49 | 36 | $8 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 31 | 17 | $122 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 29 | 29 | $131 | |
71046 |
X-ray of chest, 2 views | 27 | 25 | $32 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 25 | 25 | $19 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 18 | 18 | $170 | |
99238 |
Hospital discharge day management, 30 minutes or less | 16 | 16 | $79 |
In context: peer comparison
Among 3 peers in Royal Palm Beach Internal Medicine Physician, average services per provider: 62. This provider delivers 7.7× the peer median.Open Payments
Industry payments received
All-time total
$157
Transactions
8
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk INC | 3 | $48.83 | |
| Exact Sciences Corporation | 1 | $27.52 | |
| Abbott Laboratories | 1 | $22.72 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $20.33 | |
| GlaxoSmithKline, LLC. | 1 | $20.00 | |
| Lilly USA, LLC | 1 | $18.00 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,181
Patients
631
Total drug cost
$9,802
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 145 | 64 | $627 |
| Atorvastatin Calcium | Generic | 101 | 54 | $925 |
| Lisinopril | Generic | 93 | 41 | $338 |
| Gabapentin | Generic | 87 | 39 | $425 |
| Fluticasone Propionate | Generic | 84 | 55 | $800 |
| Tizanidine Hcl | Generic | 79 | 41 | $324 |
| Losartan Potassium | Generic | 78 | 44 | $631 |
| Methylprednisolone | Generic | 78 | 62 | $598 |
| Cyclobenzaprine Hcl | Generic | 76 | 46 | $192 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 63 | 44 | $1,821 |
Hospital affiliations
Frequently asked questions
What is Dr. Nathaniel Fleischner's medical specialty?
Dr. Nathaniel Fleischner practices Internal Medicine Physician in Royal Palm Beach, FL.
Where does Dr. Nathaniel Fleischner practice?
Dr. Nathaniel Fleischner practices at 11700 Okeechobee Blvd, Royal Palm Beach, FL 334118721. Office phone: 5617900789.
What is Dr. Nathaniel Fleischner's NPI?
Dr. Nathaniel Fleischner's National Provider Identifier (NPI) is 1083880926, issued by NPPES.
Does Dr. Nathaniel Fleischner accept Medicare assignment?
Yes. Dr. Nathaniel Fleischner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nathaniel Fleischner commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.