Christoforos Giakoumatos, MD
NPI 1336555267 · Psychiatry Physician · Boston, MA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christoforos Giakoumatos, MD is a Psychiatry Physician provider in Boston, MA (NPI 1336555267).
Provider details
- NPI number
- 1336555267
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 273223 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
275 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 | 178 | $127 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 97 | $102 |
Typical Medicare-allowed amounts for these services range $102–$127 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 188 | 25 |
| Clonazepam | 176 | 16 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 120 | — |
| Clonidine Hcl | 79 | 11 |
| Trazodone Hcl | 71 | 13 |
| Quetiapine Fumarate | 60 | — |
| Diazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 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
Additional practice locations (1)
- 339 Massachusetts AveArlington, MA 02474-6718Phone: (833) 510-4357
Registry dates
- Enumerated
- 2014-07-11
- Last updated
- 2023-02-28
- Certified
- 2023-02-28
Frequently asked questions
- What is Christoforos Giakoumatos's NPI number?
- Christoforos Giakoumatos's National Provider Identifier (NPI) is 1336555267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christoforos Giakoumatos's specialty?
- Christoforos Giakoumatos is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Christoforos Giakoumatos located?
- Christoforos Giakoumatos's practice location on file with NPPES is 100 Blossom St Ste 110, Boston, MA 02114-2606.
- What is Christoforos Giakoumatos's phone number?
- The practice phone number listed in the NPPES registry for Christoforos Giakoumatos is (617) 726-6993.
- Does Christoforos Giakoumatos accept Medicare?
- Christoforos Giakoumatos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christoforos Giakoumatos's NPI active?
- Yes — Christoforos Giakoumatos's NPI (1336555267) is active in the NPPES registry as of the last update on 2023-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.