Provider Profile
Theresa L. O'Brien, PA
Unclaimed ProfileAbout Theresa O'brien
Theresa L. O'Brien, PA is a physician assistant practicing in Lakewood, CO. Theresa is also listed as specializing in physician assistant — surgical. According to Medicare claims data, Theresa cared for 113 Medicare patients across 137 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. This provider record is associated with NPI 1740704980.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (303) 643-4117
- Email not available
Practice Locations
11750 W 2ND PL STE 255
Lakewood, CO 80228
2900 W Oklahoma Ave
Milwaukee, WI 53215
7780 S Broadway Ste 350
Littleton, CO 80122
Procedures Most Often Billed to Medicare
137 services · 113 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of cage or mesh device to spine bone and disc space during spine fusion | Procedure | 22853 |
23 | Less often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
47 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
28 | As often as other peers in Physician Assistant |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
25 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
14 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 16 related providers in 2 groups
Other physician assistants in Lakewood 8
Same specialty, same city.
Also performs Insertion of cage or mesh device to spine bone and disc space during spine fusion 8
Providers in CO who bill this service to Medicare most often.
Common questions
What does Theresa L. O'Brien specialize in?
Theresa L. O'Brien is a physician assistant in Lakewood, CO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Theresa L. O'Brien located?
Theresa L. O'Brien is listed at 11750 W 2Nd Pl Ste 255, Lakewood, CO 80228. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Theresa L. O'Brien's phone number?
The number on file is (303) 643-4117. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Theresa L. O'Brien's NPI number?
Theresa L. O'Brien's National Provider Identifier is 1740704980. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Theresa L. O'Brien train?
Theresa L. O'Brien attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Theresa L. O'Brien been practicing?
Theresa L. O'Brien has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What does Theresa L. O'Brien do most often?
According to Medicare billing data, Theresa L. O'Brien performs procedures including insertion of cage or mesh device to spine bone and disc space during spine fusion, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Theresa L. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Theresa L. O'Brien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.