David Chiang, M.D
NPI 1124219506 · Internal Medicine Physician · Norwell, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Chiang, M.D is a Internal Medicine Physician provider in Norwell, MA (NPI 1124219506).
Provider details
- NPI number
- 1124219506
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 238827 (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
18 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
4,760 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 805 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 492 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 467 | $129 |
| Blood Test, Clotting Time85610 | 337 | $4 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 293 | $24 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 291 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 199 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 901 | 313 |
| Lisinopril | 715 | 227 |
| Oxycodone Hcl | 657 | 80 |
| Gabapentin | 563 | 154 |
| Omeprazole | 517 | 178 |
| Amlodipine Besylate | 513 | 176 |
| Levothyroxine Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-08-09
- Last updated
- 2016-03-17
Frequently asked questions
- What is David Chiang's NPI number?
- David Chiang's National Provider Identifier (NPI) is 1124219506, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Chiang's specialty?
- David Chiang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is David Chiang located?
- David Chiang's practice location on file with NPPES is 143 Longwater Dr, Norwell, MA 02061-1683.
- What is David Chiang's phone number?
- The practice phone number listed in the NPPES registry for David Chiang is (781) 878-5200.
- Does David Chiang accept Medicare?
- David Chiang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Chiang's NPI active?
- Yes — David Chiang's NPI (1124219506) is active in the NPPES registry as of the last update on 2016-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.