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Edit this profileWhere to find Katherine Keller, DO
- Portland location main office
51 Sewall St Ste 1, Portland, ME 04102 - Portland location
22 Bramhall St, Portland, ME 04102 - Lexington location
740 S. Limestone, Room J515, Lexington, KY 40536
About Dr. Keller
Katherine Keller, DO is a specialist practicing in Portland, ME. Katherine is also listed as specializing in internal medicine and rheumatology. According to Medicare claims data, Katherine cared for 605 Medicare patients across 1,426 services. The services billed most often include insertion of needle into vein for collection of blood sample, blood test, comprehensive group of blood chemicals, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count. This provider record is associated with NPI 1568854404.
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
- (207) 774-5761
- Email not available
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Practice Locations
51 SEWALL ST STE 1
Portland, ME 04102
22 Bramhall St
Portland, ME 04102
740 S. Limestone, Room J515
Lexington, KY 40536
Procedures Most Often Billed to Medicare
1,426 services · 605 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
192 | As often as other peers in Specialist |
| Calculation of trabecular bone score (tbs) using imaging data with interpretation and report on fracture risk | Imaging | 77089 |
19 | Too few peers to compare |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
19 | Less often than most peers in Specialist |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
78 | Less often than most peers in Specialist |
| Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | Treatment | 96365 |
59 | As often as other peers in Specialist |
| Infusion, normal saline solution, 250 cc | Drug given | J7050 |
131 | As often as other peers in Specialist |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
158 | As often as other peers in Specialist |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
150 | Less often than most peers in Specialist |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
147 | As often as other peers in Specialist |
| Measurement c-reactive protein for detection of infection or inflammation | Lab test | 86140 |
109 | Less often than most peers in Specialist |
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 specialists at this location 7
Same specialty, same street address — most likely the same department or group.
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.
Other specialists in Portland 7
Same specialty, same city.
More connections — 17 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 1
Providers in ME who bill this service to Medicare most often.
Common questions
What is Dr. Keller's specialty?
Dr. Keller is a specialist in Portland, ME. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Keller?
Dr. Keller is listed at 51 Sewall St Ste 1, Portland, ME 04102. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Keller?
The number on file is (207) 774-5761. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Keller's NPI number?
Dr. Keller's National Provider Identifier is 1568854404. 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
What is Dr. Keller's medical education?
Dr. Keller attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Keller been practicing?
Dr. Keller has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Keller known for?
According to Medicare billing data, Dr. Keller performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as calculation of trabecular bone score using imaging data with interpretation and report on fracture risk and dxa bone density measurement of hip, pelvis, spine; provides treatments such as administration of chemotherapy into vein, 1 hour or less and infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Keller confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Keller. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.