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- 6 Tsienneto Rd Ste 100, Derry, NH 03038
About Dr. Dreffer
Douglas R. Dreffer, M.D. practices family practice in Derry, NH. Douglas is a 1997 graduate of Ohio State University College of Medicine. Douglas is also listed as specializing in family medicine. According to Medicare claims data, Douglas cared for 1,779 Medicare patients across 2,318 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1316940802.
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
- (603) 537-1300
- Email not available
Practice Locations
6 TSIENNETO RD STE 100
Derry, NH 03038
Conditions Commonly Evaluated or Treated
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Allergies
- Diabetes
- Flu
- Hypothyroidism
- Strep throat
- UTI
Cardiometabolic
Digestive
- Acid reflux
- IBS
Genitourinary and reproductive
- Erectile dysfunction
- Heavy periods
Musculoskeletal and pain
Neurologic and behavioral
Respiratory and infectious
- Acute bronchitis
- Asthma
- Sinus infection
Skin
Common childhood and ear conditions
Pain & Joints
- Arthritis
- Back pain
Procedures & services
Most searched procedures
- Annual physical
- Blood test
- Flu shot
- Medicare wellness visit
- Sick visit
- TB test
- Well-woman exam
Preventive interventions
- Birth control counseling
- Smoking cessation counseling
Screening and testing
- Cholesterol screening
- Depression screening
- Diabetes and prediabetes screening
- EKG
Diagnostic Tests
- COVID-19 testing
- Rapid Strep and Flu Swabs
- Urine Drug Screen
Exams & Screenings
- Camp and School Physical
- Pre-Op Clearance Exam
Foot and Leg Pain
- Toenail Fungus Treatment
Heart & Circulation
Injections
- Immunotherapy
- Vitamin B12 Injections
Lungs & Breathing
- Pulmonary function test
Minor Procedures
- Burn and Wound Care
- Ingrown toenail removal
- Suture removal
Occupational Health
- DOT Physical
Office procedures
- Earwax removal
- Incision and drainage of an abscess
- Superficial foreign-body removal
Pain Management
- Joint injections
Preventive Care
- Chronic Illness Checkup
- Routine Vaccines
- Travel Vaccines And Consult
Respiratory
- Breathing Treatment
Senior Care
- Cognitive Assessment
Sexual & Reproductive Health
- STD Swabs and Screening
Skin Procedures
- Cyst Removal
- Precancerous Sun Spot Freezing
- Skin Tag Removal
- Wart Removal
Sleep Health
- At-Home Sleep Study Order
Urgent Care Procedures
- Stitches and Laceration Repair
Wellness & Weight
- Weight Management Consult
Women's Health
- Hormone Replacement Therapy Consultation
Procedures Most Often Billed to Medicare
2,318 services · 1,779 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening mammography | Imaging | 77067 |
39 | More often than most peers in Family Practice |
| Screening 3d breast mammography | Imaging | 77063 |
39 | As often as other peers in Family Practice |
| X-ray of chest, 2 views | Imaging | 71046 |
20 | As often as other peers in Family Practice |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
16 | Less often than most peers in Family Practice |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
61 | More often than most peers in Family Practice |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
49 | More often than most peers in Family Practice |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
20 | As often as other peers in Family Practice |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
20 | As often as other peers in Family Practice |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
16 | Less often than most peers in Family Practice |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
704 | More than most peers in Family Practice |
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 family practices at this location 4
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 family practices in Derry 5
Same specialty, same city.
More connections — 20 related providers in 3 groups
Trained at Ohio State University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at Ohio State University College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 4
Providers in NH who bill this service to Medicare most often.
Common questions
What does Douglas R. Dreffer specialize in?
Douglas R. Dreffer is a family practice in Derry, NH. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Douglas R. Dreffer located?
Douglas R. Dreffer is listed at 6 Tsienneto Rd Ste 100, Derry, NH 03038. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Douglas R. Dreffer's phone number?
The number on file is (603) 537-1300. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Douglas R. Dreffer's NPI number?
Douglas R. Dreffer's National Provider Identifier is 1316940802. 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
Where did Douglas R. Dreffer train?
Douglas R. Dreffer attended Ohio State University College of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Douglas R. Dreffer been practicing?
Douglas R. Dreffer has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Douglas R. Dreffer do most often?
According to Medicare billing data, Douglas R. Dreffer performs imaging including screening mammography and screening 3d breast mammography; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Douglas R. Dreffer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Douglas R. Dreffer. If this is you, claiming it is free.
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