Douglas Fritz, M.D.
NPI 1336360742 · Internal Medicine Physician · Lynnfield, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Douglas Fritz, M.D. is a Internal Medicine Physician provider in Lynnfield, MA (NPI 1336360742).
Provider details
- NPI number
- 1336360742
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 248242 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
489 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 176 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 133 | $90 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 74 | $129 |
| Administration of Influenza Virus VaccineG0008 | 31 | $32 |
| Hemoglobin A1c Level83036 | 29 | $10 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 18 | $128 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 94 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 141 | 23 |
| Atorvastatin Calcium | 139 | 46 |
| Lisinopril | 125 | 43 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 124 | 15 |
| Amlodipine Besylate | 115 | 39 |
| Omeprazole | 103 | 40 |
| Oxycodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-01
- Last updated
- 2012-06-20
Frequently asked questions
- What is Douglas Fritz's NPI number?
- Douglas Fritz's National Provider Identifier (NPI) is 1336360742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Douglas Fritz's specialty?
- Douglas Fritz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Douglas Fritz located?
- Douglas Fritz's practice location on file with NPPES is 6 Kimball Ln Ste 120, Lynnfield, MA 01940-2667.
- What is Douglas Fritz's phone number?
- The practice phone number listed in the NPPES registry for Douglas Fritz is (781) 213-4040.
- Does Douglas Fritz accept Medicare?
- Douglas Fritz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Douglas Fritz's NPI active?
- Yes — Douglas Fritz's NPI (1336360742) is active in the NPPES registry as of the last update on 2012-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.