Doctor profile · Federal record

Dr. Benjamas Rattananai, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Allentown, PA

  • NPI 1326307943
  • Accepts Medicare
  • 14 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1627 Chew St
Allentown, PA 181023648
(610) 969-3390
Additional location
2901 Jolly RD
Plymouth Meeting, PA 194622324
(610) 272-8221
fax (610) 272-5655
Mailing address
2901 Jolly RD
Plymouth Meeting, PA 194622324

Credentials & registration

NPPES · NUCC
NPI registered
May 2012 — 14 yrs on file
Profile last updated
January 9, 2024
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Pennsylvania #MD459111 · Connecticut #054354

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326307943. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,531
Distinct HCPCS
10
Medicare allowed
$165,336
HCPCS Description Services Patients Avg allowed
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 540 321 $127
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 292 87 $110
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 208 83 $65
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 117 49 $110
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 101 92 $76
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 53 49 $137
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 49 32 $77
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 48 21 $52
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 31 31 $184
99344 Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes 24 24 $143

In context: peer comparison

Among 46 peers in Allentown Internal Medicine Physician, average services per provider: 85. This provider delivers 18× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
6,028
Patients
1,045
Total drug cost
$196,341
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 653 95 $7,762
Atorvastatin Calcium Generic 617 119 $8,777
Amlodipine Besylate Generic 519 109 $4,469
Furosemide Generic 508 92 $4,260
Gabapentin Generic 430 67 $7,357
Sertraline Hcl Generic 394 71 $5,358
Quetiapine Fumarate Generic 377 42 $4,566
Escitalopram Oxalate Generic 358 59 $4,617
Metoprolol Succinate Generic 338 57 $5,889
Lisinopril Generic 327 63 $3,341

Frequently asked questions

Auto-generated from federal data
What is Dr. Benjamas Rattananai's medical specialty?
Dr. Benjamas Rattananai practices Internal Medicine Physician in Allentown, PA.
Where does Dr. Benjamas Rattananai practice?
Dr. Benjamas Rattananai practices at 1627 Chew St, Allentown, PA 181023648. Office phone: 6109693390.
What is Dr. Benjamas Rattananai's NPI?
Dr. Benjamas Rattananai's National Provider Identifier (NPI) is 1326307943, issued by NPPES.
Does Dr. Benjamas Rattananai accept Medicare assignment?
Yes. Dr. Benjamas Rattananai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Benjamas Rattananai commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Chronic care management services (HCPCS 99490). Source: CMS Medicare Physician & Other Practitioners file.