Doctor profile · Federal record

Dr. Christina Dematteo, DO

Internal Medicine Physician (CMS: Internal Medicine) · Portland, ME

  • NPI 1033438254
  • Accepts Medicare
  • MIPS 93.1 / 100 · 2023
  • 16 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
22 Bramhall St
Portland, ME 041023134
(207) 662-4618
fax (207) 662-6254
Mailing address
301C US Route 1
Scarborough, ME 040749701

Credentials & registration

NPPES · NUCC
NPI registered
May 2010 — 16 yrs on file
Profile last updated
October 16, 2013
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Maine #DO2369

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1033438254. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
121
Distinct HCPCS
5
Medicare allowed
$13,233
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 40 30 $117
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 22 20 $78
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 20 20 $171
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 20 14 $48
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 19 19 $128

In context: peer comparison

Among 43 peers in Portland Internal Medicine Physician, average services per provider: 61. This provider delivers 2.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
39
Patients
0
Total drug cost
$96,268
Drug Type Claims Patients Total cost
Descovy (Emtricitabine/Tenofov Alafenam) Brand 39 0 $96,268

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Christina Dematteo's medical specialty?
Dr. Christina Dematteo practices Internal Medicine Physician in Portland, ME.
Where does Dr. Christina Dematteo practice?
Dr. Christina Dematteo practices at 22 Bramhall St, Portland, ME 041023134. Office phone: 2076624618.
What is Dr. Christina Dematteo's NPI?
Dr. Christina Dematteo's National Provider Identifier (NPI) is 1033438254, issued by NPPES.
Does Dr. Christina Dematteo accept Medicare assignment?
Yes. Dr. Christina Dematteo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christina Dematteo commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.