Mark Messenger, MD
NPI 1194726471 · Internal Medicine Physician · Danvers, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Messenger, MD is a Internal Medicine Physician provider in Danvers, MA (NPI 1194726471).
Provider details
- NPI number
- 1194726471
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 59153 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
629 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 300 | $129 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 252 | $77 |
| Residence Visit for New Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99344 | 30 | $143 |
| Residence Visit for New Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 75 Minutes99345 | 17 | $202 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 17 | $186 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 137 | 25 |
| Omeprazole | 135 | 25 |
| Lisinopril | 126 | 28 |
| Levothyroxine Sodium | 124 | 24 |
| Metoprolol Succinate | 117 | 23 |
| Amlodipine Besylate | 100 | 25 |
| Warfarin Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-09
- Last updated
- 2020-01-30
- Certified
- 2020-01-30
Frequently asked questions
- What is Mark Messenger's NPI number?
- Mark Messenger's National Provider Identifier (NPI) is 1194726471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Messenger's specialty?
- Mark Messenger is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Messenger located?
- Mark Messenger's practice location on file with NPPES is 75 Sylvan St Ste B102, Danvers, MA 01923-2764.
- What is Mark Messenger's phone number?
- The practice phone number listed in the NPPES registry for Mark Messenger is (978) 774-7566.
- Does Mark Messenger accept Medicare?
- Mark Messenger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Messenger's NPI active?
- Yes — Mark Messenger's NPI (1194726471) is active in the NPPES registry as of the last update on 2020-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.