Doctor profile · Federal record
Dr. Mary Karen Pena, M.D.
Neurology Physician (CMS: Neurology) · Humacao, PR
- NPI 1386746634
- Accepts Medicare
- 32 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
334 Ave Font Martelo
Humacao, PR 00791
(787) 852-0886
fax (787) 852-0280
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Puerto Rico #12866
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1386746634. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
23
Distinct HCPCS
1
Medicare allowed
$2,917
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 23 | 19 | $127 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 23. This provider delivers 1.0× the peer median.Open Payments
Industry payments received
All-time total
$131
Transactions
6
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Biogen, Inc. | 3 | $60.86 | |
| ACADIA Pharmaceuticals Inc | 2 | $40.97 | |
| ABBVIE INC. | 1 | $29.43 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
7,587
Patients
1,505
Total drug cost
$137,008
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Donepezil Hcl | Generic | 1,801 | 373 | $14,306 |
| Memantine Hcl | Generic | 1,108 | 218 | $22,541 |
| Tizanidine Hcl | Generic | 938 | 200 | $7,964 |
| Gabapentin | Generic | 903 | 180 | $8,709 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 446 | 73 | $11,832 |
| Levetiracetam | Generic | 394 | 75 | $10,824 |
| Topiramate | Generic | 349 | 54 | $2,932 |
| Pramipexole Dihydrochloride (Pramipexole Di-Hcl) | Brand | 275 | 50 | $3,011 |
| Rivastigmine | Generic | 256 | 55 | $38,759 |
| Primidone | Generic | 222 | 47 | $4,129 |
Frequently asked questions
What is Dr. Mary Karen Pena's medical specialty?
Dr. Mary Karen Pena practices Neurology Physician in Humacao, PR.
Where does Dr. Mary Karen Pena practice?
Dr. Mary Karen Pena practices at 334 Ave Font Martelo, Humacao, PR 00791. Office phone: 7878520886.
What is Dr. Mary Karen Pena's NPI?
Dr. Mary Karen Pena's National Provider Identifier (NPI) is 1386746634, issued by NPPES.
Does Dr. Mary Karen Pena accept Medicare assignment?
Yes. Dr. Mary Karen Pena accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Karen Pena commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.