Physician Profile
Mary Dawn T. Co, M.D. practices infectious disease in Worcester, MA. Mary Dawn is a 1994 graduate of Medical College of Pennsylvania. According to Medicare claims data, the services billed most often include initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. The provider's National Provider Identifier (NPI) is 1427030493.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
119 BELMONT ST
Worcester, MA 01605
55 Lake Ave N
Worcester, MA 01655
Within Infectious Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Bacterial infections
Bones & joints
Cardiovascular
Digestive infections
Fungal infections
General symptoms
Neurological infections
Parasitic infections
Post-infection conditions
Respiratory infections
Sexually transmitted infections
Skin & soft tissue
Travel-related infections
Urinary tract
Viral infections
Most searched procedures
Allergy & immunology
Allergy & Pharmacology
Antiviral treatments
Consultation & second opinions
Diagnostic evaluations
Diagnostics & screening
Gastrointestinal treatments
Infusions & Medications
Lab testing & monitoring
Medication management
Prevention & Prophylaxis
Prevention & prophylaxis
Travel medicine
18 services · 18 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
18 | Less often than most peers in Infectious Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Mary Dawn T. Co is an infectious disease specialist in Worcester, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Infectious Disease”.
NPI registry
Mary Dawn T. Co is listed at 119 Belmont St, Worcester, MA 01605. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (774) 441-8230. Contact the office directly to confirm availability and scheduling.
NPI registry
Mary Dawn T. Co's National Provider Identifier is 1427030493. 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
Mary Dawn T. Co attended Medical College of Pennsylvania, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
Mary Dawn T. Co has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Mary Dawn T. Co the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Mary Dawn T. Co. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.